| Year | Loss |
| 1977 | 571.7 | 1978 | 654.9 | 1979 | 756.4 | 1980 | 979.0 | 1981 | 905.4 | 1982 | 998.9 | 1983 | 816.0 | 1984 | 929.5 | 1985 | 926.0 | 1986 | 973.5 | 1987 | 956.2 | 1988 | 1,004.3 | 1989 | 1,119.6 | 1990 | 1,237.4 | 1991 | 1,239.7 | 1992 | 1,241.4 | 1993 | 1,181.9 | 1994 | 1,151.5 | 1995 | 1,110.8 | 1996 | 1,163.3 | 1997 | 1,291.6 | 1998 | 1,175.6 | 1999 | 1,231.9 | 2000 | 1,185.2 | 2001 | 1,420.8 | 2002 | 1,489.0 | 2003 | 1,356.1 | 2004 | 1,126.6 | 2005 | 1,265.9 | 2006 | 1,403.3 |
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