<Page>
                                                                    Exhibit 99.5

            GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                         NUMBER ON SUBSTITUTE FORM W-9

GUIDELINES FOR DETERMINING THE PROPER IDENTIFICATION NUMBER TO GIVE THE PAYER --
Social Security Numbers have nine digits separated by two hyphens: i.e.,
000-00-0000. Employer Identification Numbers have nine digits separated by only
one hyphen: i.e., 00-0000000. The table below will help determine the number to
give the payer.

<Table>
                                                            
FOR THIS TYPE OF ACCOUNT:    GIVE THE SOCIAL       FOR THIS TYPE OF ACCOUNT:  GIVE THE EMPLOYER
                             SECURITY NUMBER OF                               IDENTIFICATION
                             --                                               NUMBER OF --
- -------------------------------------------------  -----------------------------------------------
1.  An individual's account  The individual         8.  Sole proprietorship   The owner(4)
                                                        account

2.  Two or more individuals  The actual owner of    9.  A valid trust,        The legal entity (Do
    (joint account)          the account or, if         estate or pension     not furnish the
                             combined funds, any        trust                 identifying number
                             one of the                                       of the personal
                             individuals(1)                                   representative or
                                                                              trustee unless the
                                                                              legal entity itself
                                                                              is not designated in
                                                                              the account
                                                                              title)(5)

3.  Husband and wife (joint  The actual owner of   10.  Corporate account     The corporation
    account)                 the account or, if
                             joint funds, either
                             person(1)

4.  Custodian account of a   The minor(2)          11.  Religious,            The organization
    minor (Uniform Gift to                              charitable, or
    Minors Act)                                         educational
                                                        organization account

5.  Adult and minor (joint   The adult or, if the  12.  Partnership account   The partnership
    account)                 minor is the only          held in the name of
                             contributor, the           the business
                             minor(1)

6.  Account in the name of   The ward, minor, or   13.  Association, club,    The organization
    guardian or committee    incompetent                or other tax-exempt
    for a designated ward,   person(3)                  organization
    minor, or incompetent
    person

7.   a.  The usual           The                   14.  A broker or           The broker or
         revocable saving    grantor-trustee(1)         registered nominee    nominee
         trust account
         (grantor is also
         trustee)

     b.  So-called trust     The actual owner(1)   15.  Account with the      The public entity
         account that is                                Department of
         not a legal or                                 Agriculture in the
         valid trust under                              name of a public
         State law                                      entity (such as a
                                                        State or local
                                                        government, school
                                                        district, or prison)
                                                        that receives
                                                        agricultural program
                                                        payments
</Table>

- ------------------------

(1) List first and circle the name of the person whose number you furnish.

(2) Circle the minor's name and furnish the minor's social security number.

(3) Circle the ward's, minor's or incompetent person's name and furnish such
    person's social security number.

(4) You must show your individual name, but you may also enter your business or
    "doing business" name. You may use either your Social Security Number or
    Employer Identification Number.

(5) List first and circle the name of the legal trust, estate, or pension trust.

NOTE:  If no name is circled when there is more than one name, the number will
       be considered to be that of the first name listed.
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            GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                         NUMBER ON SUBSTITUTE FORM W-9
                                     PAGE 2

OBTAINING A NUMBER

If you do not have a taxpayer identification number or if you do not know your
number, obtain Form SS-5, Application for Social Security Number Card, or Form
SS-4, Application for Employer Identification Number, at the local office of the
Social Security Administration or the Internal Revenue Service (the "IRS") and
apply for a number.

Payees specifically exempted from backup withholding on ALL payments by brokers
include the following:

    - A corporation.

    - A financial institution.

    - An organization exempt from a tax under Section 501(a), or an individual
      retirement plan or a custodial account under Section 403(b)(7) if the
      account satisfies the requirements of Section 401(F)(2).

    - The United States or any agency or instrumentality thereof.

    - A State, the District of Columbia, a possession of the United States, or
      any subdivision or instrumentality thereof.

    - A foreign government, a political subdivision of a foreign government, or
      any agency or instrumentality thereof.

    - An international organization or any agency or instrumentality thereof.

    - A registered dealer in securities or commodities registered in the U.S. or
      a possession of the U.S.

    - A real estate investment trust.

    - A common trust fund operated by a bank under Section 584(a).

    - An entity registered at all times under the Investment Company Act of
      1940.

    - A foreign central bank of issue.

    - A futures commission merchant registered with the Commodity Futures
      Trading Commission.

    - A person registered under the Investment Advisors Act of 1940 who
      regularly acts as a broker.

Payments of dividends and patronage dividends not generally subject to backup
withholding include the following:

    - Payments to nonresident aliens subject to withholding under Section 1441.

    - Payments to partnerships not engaged in a trade or business in the U.S.
      and which have at least one nonresident partner.

    - Payments of patronage dividends where the amount received is not paid in
      money.

    - Payments made by certain foreign organizations.

    - Payments made to a nominee.

Payments of interest not generally subject to backup withholding include the
following:

    - Payments of interest on obligations issued by individuals. Note: You may
      be subject to backup withholding if this interest is $600 or more and is
      paid in the course of the payer's trade or business and you have not
      provided your correct taxpayer identification number to the payer.

    - Payments of tax-exempt interest (including exempt-interest dividends under
      Section 852).

    - Payments described in Section 6049(b)(5) to nonresident aliens.

    - Payments on tax-free covenant bonds under Section 1451.

    - Payments made by certain foreign corporations.

    - Payments made to a nominee.

Exempt payees described above should file Form W-9 to avoid possible erroneous
backup withholding. FILE THIS FORM WITH THE PAYER, FURNISH YOUR TAXPAYER
IDENTIFICATION NUMBER, CHECK "EXEMPT" IN PART II OF THE FORM, SIGN AND DATE THE
FORM AND RETURN IT TO THE PAYER.

Certain payments other than interest, dividends, and patronage dividends, which
are not subject to information reporting are also not subject to backup
withholding. For details, see the regulations under Section 6041, 6041(A)(a),
6045, and 6050A.

PRIVACY ACT NOTICE. -- Section 6109 requires most recipients of dividend,
interest, or other payments to give taxpayer identification numbers to payers
who must report the payments to IRS. IRS uses the numbers for identification
purposes. Payers must be given the numbers whether or not recipients are
required to file tax returns. Beginning January 1, 1993, payers must generally
withhold a portion of taxable interest, dividend, and certain other payments to
a payee who does not furnish a taxpayer identification number to a payer.
Certain penalties may also apply.

PENALTIES

(1) PENALTY FOR FAILURE TO FURNISH TAXPAYER IDENTIFICATION NUMBER. -- If you
fail to furnish your taxpayer identification number to a payer, you are subject
to a penalty of $50 for each such failure unless your failure is due to
reasonable cause and not to willful neglect.

(2) FAILURE TO REPORT CERTAIN DIVIDEND AND INTEREST PAYMENTS. -- If you fail to
include any portion of an includible payment for interest, dividends, or
patronage dividends in gross income, such failure will be treated as being due
to negligence and will be subject to a penalty of 5% on any portion of an
under-payment attributable to that failure unless there is clear and convincing
evidence to the contrary.

(3) CIVIL PENALTY FOR FALSE INFORMATION WITH RESPECT TO WITHHOLDING. -- If you
make a false statement with no reasonable basis which results in no imposition
of backup withholding, you are subject to a penalty of $500.

(4) CRIMINAL PENALTY FOR FALSIFYING INFORMATION. -- Falsifying certifications or
affirmations may subject you to criminal penalties including fines and/or
imprisonment. FOR ADDITIONAL INFORMATION CONTACT YOUR TAX CONSULTANT OR THE
INTERNAL REVENUE SERVICE.