Year | Value | 2022 | 162,139 | 2021 | 181,310 | 2020 | 193,459 | 2019 | 207,442 | 2018 | 220,710 | 2017 | 232,094 | 2016 | 241,776 | 2015 | 248,569 | 2014 | 252,224 | 2013 | 254,452 | 2012 | 256,499 | 2011 | 258,431 | 2010 | 260,698 | 2009 | 265,065 | 2008 | 270,079 | 2007 | 275,509 | 2006 | 282,295 | 2005 | 288,930 | 2004 | 294,438 | 2003 | 297,536 | 2002 | 295,799 | 2001 | 295,903 | 2000 | 297,051 | 1999 | 294,775 | 1998 | 294,370 | 1997 | 294,020 | 1996 | 290,873 | 1995 | 286,727 | 1994 | 282,906 | 1993 | 279,442 | 1992 | 280,864 | 1991 | 287,553 | 1990 | 294,749 | 1989 | 302,280 | 1988 | 306,585 | 1987 | 308,141 | 1986 | 310,192 | 1985 | 312,573 | 1984 | 315,445 | 1983 | 318,663 | 1982 | 321,317 | 1981 | 321,987 | 1980 | 322,253 | 1979 | 324,423 | 1978 | 329,300 | 1977 | 334,717 | 1976 | 339,057 | 1975 | 341,562 | 1974 | 338,220 | 1973 | 328,387 | 1972 | 316,182 | 1971 | 303,864 | 1970 | 292,599 | 1969 | 284,520 | 1968 | 280,437 | 1967 | 280,109 | 1966 | 282,882 | 1965 | 288,987 | 1964 | 298,511 | 1963 | 309,675 | 1962 | 319,962 | 1961 | 327,574 | 1960 | 331,783 |
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