Ten-Year Summary of Selected Historical Financial Data See Notes to Consolidated Financial Statements for the summary of significant accounting policies and additional information relative to the years 1995-1997. |
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| (in thousands, except per share amounts) | 1997 | 1996 | 1995 | 1994 | 1993 | | Results of Operations | Operating revenues | $1,956,253 | $1,853,445 | $1,719,449 | $1,613,978 | $1,498,191 | Income from operations | $ 381,351 | $ 337,169 | $ 271,018 | $ 274,875 | $ 238,980 | Income before cumulative effect of changes in accounting principle | $ 281,574 | $ 220,817 | $ 190,096 | $ 169,672 | $ 153,817 | Cumulative effect of change in method of accounting for income taxes | -- | -- | -- | -- | 11,600 | Cumulative effect of change in method of accounting for postretirement benefits other than pensions | -- | -- | -- | -- | -- | Net income | $ 281,574 | $ 220,817 | $ 190,096 | $ 169,672 | $ 165,417 | Per Share Amounts | Basic earnings per common share | Income before cumulative effect of changes in accounting principles | $ 26.23 | $ 20.08 | $ 17.16 | $ 14.66 | $ 13.10 | Cumulative effect of changes in accounting principles | -- | -- | -- | -- | 0.98 | Net income | $ 26.23 | $ 20.08 | $ 17.16 | $ 14.66 | $ 14.08 | Basic average shares outstanding | 10,700 | 10,964 | 11,075 | 11,577 | 11,746 | Diluted earnings per common share | Income before cumulative effect of changes in accounting principles | $ 26.15 | $ 20.05 | $ 17.15 | $ 14.65 | $ 13.10 | Cumulative effect of changes in accounting principles | -- | -- | -- | -- | 0.98 | Net income | $ 26.15 | $ 20.05 | $ 17.15 | $ 14.65 | $ 14.08 | Diluted average shares outstanding | 10,733 | 10,980 | 11,086 | 11,582 | 11,750 | Cash dividends | $ 4.80 | $ 4.60 | $ 4.40 | $ 4.20 | $ 4.20 | Common shareholders' equity | $ 117.36 | $ 121.24 | $ 107.60 | $ 99.32 | $ 92.84 | Financial Position | Current assets | $ 308,492 | $ 382,631 | $ 406,570 | $ 375,879 | $ 625,574 | Working capital | (300,264) | 100,995 | 98,393 | 102,806 | 367,041 | Property, plant, and equipment | 653,750 | 511,363 | 457,359 | 411,396 | 363,718 | Total assets | 2,077,317 | 1,870,411 | 1,732,893 | 1,696,868 | 1,622,504 | Long-term debt | -- | -- | -- | 50,297 | 51,768 | Common shareholders' equity | 1,184,074 | 1,322,803 | 1,184,204 | 1,126,933 | 1,087,419 | | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||