Year | Value | 2022 | 589 | 2021 | 595 | 2020 | 601 | 2019 | 594 | 2018 | 577 | 2017 | 560 | 2016 | 544 | 2015 | 529 | 2014 | 512 | 2013 | 492 | 2012 | 471 | 2011 | 454 | 2010 | 440 | 2009 | 430 | 2008 | 422 | 2007 | 416 | 2006 | 410 | 2005 | 402 | 2004 | 394 | 2003 | 385 | 2002 | 376 | 2001 | 365 | 2000 | 353 | 1999 | 338 | 1998 | 324 | 1997 | 314 | 1996 | 303 | 1995 | 294 | 1994 | 288 | 1993 | 283 | 1992 | 279 | 1991 | 275 | 1990 | 273 | 1989 | 270 | 1988 | 267 | 1987 | 265 | 1986 | 264 | 1985 | 261 | 1984 | 258 | 1983 | 255 | 1982 | 250 | 1981 | 245 | 1980 | 241 | 1979 | 237 | 1978 | 233 | 1977 | 229 | 1976 | 225 | 1975 | 219 | 1974 | 214 | 1973 | 206 | 1972 | 198 | 1971 | 190 | 1970 | 179 | 1969 | 166 | 1968 | 154 | 1967 | 143 | 1966 | 135 | 1965 | 128 | 1964 | 122 | 1963 | 118 | 1962 | 117 | 1961 | 117 | 1960 | 120 |
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