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| December 31 | ||||||||
| (in thousands) | 2001 | 2000 | 1999 | |||||
| Balance at beginning of year | $ 284,607 | $ 273,724 | $ 272,921 | |||||
| Provision related to: | ||||||||
| Current year |
181,346 | 144,103 | 122,311 | |||||
| Prior years | (700 | ) | (2,471 | ) | (6,093 | ) | ||
| 180,646 | 141,632 | 116,218 | ||||||
| Payments related to: | ||||||||
| Current year | 90,442 | 70,985 | 58,915 | |||||
| Prior years | 61,079 | 63,235 | 54,029 | |||||
| 151,521 | 134,220 | 112,944 | ||||||
| Other | 1,045 | 3,471 | (2,471 | ) | ||||
| Balance at end of year | $ 314,777 | $ 284,607 | $ 273,724 | |||||
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