16. BUSINESS SEGMENTS The Company has two reportable business segments: Shopping Centers and Office Properties. The accounting policies of the segments are the same as those described in the summary of significant accounting policies (see Note 2). The Company evaluates performance based upon income from real estate for the combined properties  in each segment. 36 ( In thousands ) Shopping Office Corporate Consolidated Centers Properties and Other Totals 2004 Real estate rental operations: Revenue $ 77,906 $ 34,679 $ 257 $ 112,842 Expenses (14,226) (8,121) -- (22,347) Income from real estate 63,680 26,558 257 90,495 Interest expense & amortization of debt costs -- -- (27,022) (27,022) General and administrative -- -- (8,442) (8,442) Subtotal 63,680 26,558 (35,207) 55,031 Depreciation and amortization (13,758) (7,566) -- (21,324) Gain on property sale 572 -- -- 572 Minority interests -- -- (8,105) (8,105) Net income $ 50,494 $ 18,992 $ (43,312) $ 26,174 Capital investment $ 109,637 $ 4,426 $ -- $ 114,063 Total assets $ 394,674 $ 138,273 $ 50,449 $ 583,396 2003 Real estate rental operations: Revenue $ 66,070 $ 31,722 $ 92 $ 97,884 Expenses (12,274) (7,840) -- (20,114) Income from real estate 53,796 23,882 92 77,770 Interest expense & amortization of debt costs -- -- (26,573) (26,573) General and administrative -- -- (6,213) (6,213) Subtotal 53,796 23,882 (32,694) 44,984 Depreciation and amortization (10,429) (7,409) -- (17,838) Gain on property sale -- 182 -- 182 Minority interests -- -- (8,086) (8,086) Net income $ 43,367 $ 16,655 $ (40,780) $ 19,242 Capital investment $ 42,999 $ 6,122 $ -- $ 49,121 Total assets $ 271,565 $ 138,862 $ 61,189 $ 471,616 2002 Real estate rental operations: Revenue $ 61,597 $ 32,261 $ 105 $ 93,963 Expenses (10,675) (7,882) -- (18,557) Income from real estate 50,922 24,379 105 75,406 Interest expense & amortization of debt costs -- -- (25,838) (25,838) General and administrative -- -- (5,537) (5,537) Subtotal 50,922 24,379 (31,270) 44,031 Depreciation and amortization (11,295) (6,526) -- (17,821) Gain on property sale 1,426 -- -- 1,426 Minority interests -- -- (8,070) (8,070) Net income $ 41,053 $ 17,853 $ (39,340) $ 19,566 Capital investment $ 23,785 $ 4,850 $ 11,534 $ 40,169 Total assets $ 237,990 $ 135,477 $ 15,220 $ 388,687 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS