Exhibit 12.2 Ratio of EBITDA (as defined) to Interest Expense: - ------------------------------------------------- Pro Forma 1994 1995 1996 1997 1998 1998 ------- ------- ------- ------- ------- ------- EBITDA (as defined) $ 9,875 $13,168 $17,213 $24,522 $43,547 $43,647 Interest expense 4,823 5,193 4,510 3,463 3,175 22,789 ------- ------- ------- ------- ------- ------- Ratio 2.1 2.5 3.8 7.1 13.7 1.9