EXHIBIT 13(A) SELECTED CONSOLIDATED FINANCIAL DATA At December 31, 2002, Harleysville Group Inc. (Company) was approximately 56% owned by Harleysville Mutual Insurance Company (Mutual). Harleysville Group Inc. and its wholly owned subsidiaries (collectively, Harleysville Group) are engaged in property and casualty insurance. These subsidiaries are: Harleysville-Atlantic Insurance Company (Atlantic), Harleysville Insurance Company (HIC), Harleysville Insurance Company of New Jersey (HNJ), Harleysville Insurance Company of New York (HIC New York), Harleysville Insurance Company of Ohio (HIC Ohio), Harleysville Lake States Insurance Company (Lake States), Harleysville Preferred Insurance Company (Preferred), Harleysville Worcester Insurance Company (Worcester), Mid-America Insurance Company (Mid-America), and Harleysville Ltd., a real estate partnership that owns the home office. YEAR ENDED DECEMBER 31, -------------------------------------------------------------- 2002 2001 2000 1999 1998 ---------- ---------- ---------- ---------- ---------- (in thousands, except per share data) INCOME STATEMENT DATA(1): - --------------------- Premiums earned $ 764,636 $ 729,889 $ 688,330 $ 707,200 $ 664,604 Investment income, net 86,265 85,518 86,791 85,894 86,025 Realized investment gains (losses) (18,448) (3,071) 9,780 16,222 16,085 Total revenues 847,736 827,751 802,571 824,756 779,311 Income before income taxes 56,482 51,800 57,705 47,752 80,441 Income taxes 10,227 8,307 9,013 4,935 17,028 Net income 46,255 43,493 48,692 39,913 63,413 Basic earnings per share $ 1.56 $ 1.49 $ 1.69 $ 1.37 $ 2.18 Diluted earnings per share $ 1.53 $ 1.46 $ 1.67 $ 1.35 $ 2.15 Cash dividends per share $ .63 $ .58 $ .55 $ .52 $ .48 BALANCE SHEET DATA AT YEAR END: - ------------------------------ Total investments $1,706,900 $1,611,144 $1,599,125 $1,604,022 $1,579,566 Total assets 2,311,524 2,045,290 2,021,862 2,020,056 1,934,497 Debt 95,620 96,055 96,450 96,810 97,140 Shareholders' equity 632,112 590,298 566,581 526,894 529,658 Shareholders' equity per share $ 21.13 $ 20.05 $ 19.54 $ 18.29 $ 18.17 - ------------------- (1) The Company's insurance subsidiaries participate in an underwriting pooling arrangement with Mutual. Harleysville Group's participation was 72% for all years presented. See "Management's Discussion and Analysis of Results of Operations and Financial Condition" and Note 2(a) of the Notes to Consolidated Financial Statements. Page 1