| 1978 | 1979 | 1980 | | 1981 | 1982 | 1983 | 1984 | 1985 | | 1986 | 1987 | 1988 | 1989 | 1990 | | 1991 | 1992 | 1993 | 1994 | 1995 | | 1996 | 1997 | 1998 | 1999 | 2000 | | 2001 | 2002 | 2003 | 2004 | 2005 | | 2006 | 2007 | 2008 | 2009 | | |
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| | | | | | | | | | | 444.1 | 291.6 | 240.9 | 50.7 | | | | | | | | 470.5 | 311.9 | 254.2 | 57.8 | | | | | | | | 484.2 | 326.8 | 269.4 | 57.1 | | | | | | | 0.3 | | | | | | | | | | | | 511.7 | 345.2 | 283.1 | 61.3 | | | | | | | | 535.2 | 361.1 | 293.0 | 67.1 | | | | | | | | 552.0 | 373.8 | 303.4 | 68.5 | | | | | | | | 556.2 | 377.6 | 302.5 | 71.6 | | | | 1.3 | | | | 566.5 | 392.6 | 308.1 | 72.6 | | | | 1.6 | | | 2.5 | | | | | | | | | | | | 572.7 | 400.5 | 324.4 | 71.1 | | | | 2.4 | | | 2.6 | 580.2 | 408.3 | 331.8 | 70.7 | | | | 2.8 | | | 3.1 | 584.1 | 413.9 | 336.4 | 69.9 | 0.2 | | | 3.4 | | | 3.5 | 593.9 | 424.0 | 343.8 | 67.4 | 3.4 | | | 3.7 | | | 5.6 | 627.1 | 461.2 | 357.9 | 86.8 | 5.1 | | | 4.6 | | | 6.3 | | | | | | | | | | | | 634.0 | 477.2 | 367.8 | 89.0 | 0.5 | | | 7.7 | 0.2 | | 7.2 | 649.3 | 490.6 | 371.5 | 90.5 | 0.4 | | | 11.4 | 0.2 | | 14.0 | 627.8 | 481.4 | 362.3 | 79.7 | 2.8 | | | 11.0 | 6.4 | | 14.0 | 664.3 | 492.7 | 363.5 | 73.3 | 3.5 | | | 15.0 | 9.4 | | 20.9 | 665.3 | 492.7 | 358.2 | 72.1 | 3.7 | | | 17.4 | 10.0 | | 21.9 | | | | | | | | | | | | 660.2 | 495.7 | 355.1 | 68.6 | 3.4 | | | 20.7 | 10.1 | | 22.9 | 655.8 | 498.7 | 354.7 | 68.5 | 3.2 | | | 21.2 | 10.2 | | 21.2 | 622.2 | 463.2 | 308.1 | 51.0 | 5.2 | 13.7 | 10.8 | 21.2 | 13.1 | | 20.1 | 618.6 | 456.1 | 287.6 | 49.7 | 4.8 | 24.0 | 12.2 | 20.6 | 13.5 | | 23.7 | 619.3 | 456.3 | 266.2 | 48.3 | 4.0 | 34.2 | 14.0 | 23.8 | 14.2 | | 24.4 | | | | | | | | | | | | 628.9 | 464.2 | 246.3 | 45.8 | 4.1 | 50.6 | 17.3 | 22.4 | 12.9 | | 24.8 | 679.2 | 513.6 | 224.8 | 36.8 | 4.1 | 85.0 | 27.1 | 29.2 | 17.0 | 4.8 | 33.1 | 703.3 | 533.7 | 212.8 | 30.1 | 3.8 | 102.3 | 33.4 | 31.5 | 17.3 | 5.2 | 37.2 | 854.1 | 682.7 | 199.5 | 28.2 | 3.5 | 134.5 | 37.9 | 45.0 | 18.3 | 134.2 | 45.7 | 878.0 | 694.0 | 195.0 | 23.8 | 2.4 | 149.4 | 36.4 | 49.6 | 21.7 | 131.2 | 57.2 | | | | | | | | | | | | 919.7 | 734.2 | 189.3 | 18.8 | 2.1 | 165.1 | 35.5 | 57.3 | 23.5 | 154.8 | 65.6 | 942.7 | 745.4 | 189.3 | 17.3 | 1.9 | 179.5 | 38.7 | 69.3 | 28.8 | 133.8 | 67.2 | 980.9 | 813.7 | 187.8 | 24.8 | 2.2 | 196.4 | 46.4 | 72.9 | 33.5 | 159.6 | 65.1 | 998.3 | 856.6 | 185.7 | 24.3 | 0.9 | 215.7 | 58.4 | 71.2 | 36.6 | 172.2 | 67.5 | | | | | | | | | | | | | | | | | | | | | | | |