Year | Value | 2022 | 157,474 | 2021 | 163,066 | 2020 | 162,044 | 2019 | 162,725 | 2018 | 162,116 | 2017 | 159,251 | 2016 | 158,150 | 2015 | 158,008 | 2014 | 158,330 | 2013 | 163,834 | 2012 | 174,215 | 2011 | 185,393 | 2010 | 198,371 | 2009 | 213,466 | 2008 | 227,846 | 2007 | 240,467 | 2006 | 251,301 | 2005 | 259,132 | 2004 | 263,728 | 2003 | 266,924 | 2002 | 269,782 | 2001 | 276,348 | 2000 | 283,247 | 1999 | 288,029 | 1998 | 293,601 | 1997 | 299,649 | 1996 | 306,622 | 1995 | 313,216 | 1994 | 318,648 | 1993 | 321,654 | 1992 | 321,756 | 1991 | 320,797 | 1990 | 321,254 | 1989 | 325,644 | 1988 | 330,132 | 1987 | 330,482 | 1986 | 327,689 | 1985 | 323,793 | 1984 | 319,367 | 1983 | 314,073 | 1982 | 311,753 | 1981 | 313,597 | 1980 | 316,152 | 1979 | 316,784 | 1978 | 317,504 | 1977 | 319,811 | 1976 | 321,819 | 1975 | 324,316 | 1974 | 327,445 | 1973 | 331,047 | 1972 | 334,452 | 1971 | 335,995 | 1970 | 336,681 | 1969 | 338,787 | 1968 | 342,197 | 1967 | 345,508 | 1966 | 348,647 | 1965 | 349,884 | 1964 | 345,296 | 1963 | 334,447 | 1962 | 321,334 | 1961 | 308,659 | 1960 | 297,325 |
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