Year | Value | 2022 | 281,547 | 2021 | 270,858 | 2020 | 262,051 | 2019 | 254,752 | 2018 | 247,811 | 2017 | 241,494 | 2016 | 235,224 | 2015 | 230,361 | 2014 | 227,547 | 2013 | 226,146 | 2012 | 225,877 | 2011 | 226,295 | 2010 | 226,551 | 2009 | 225,481 | 2008 | 222,576 | 2007 | 218,337 | 2006 | 212,363 | 2005 | 204,158 | 2004 | 195,138 | 2003 | 186,349 | 2002 | 178,181 | 2001 | 172,242 | 2000 | 169,297 | 1999 | 167,658 | 1998 | 165,931 | 1997 | 164,616 | 1996 | 163,518 | 1995 | 161,882 | 1994 | 159,690 | 1993 | 157,461 | 1992 | 155,617 | 1991 | 154,227 | 1990 | 152,727 | 1989 | 150,963 | 1988 | 150,055 | 1987 | 149,838 | 1986 | 150,156 | 1985 | 150,760 | 1984 | 149,425 | 1983 | 145,893 | 1982 | 141,403 | 1981 | 136,359 | 1980 | 131,589 | 1979 | 130,747 | 1978 | 133,835 | 1977 | 137,708 | 1976 | 141,319 | 1975 | 144,482 | 1974 | 146,098 | 1973 | 145,920 | 1972 | 145,165 | 1971 | 144,449 | 1970 | 143,338 | 1969 | 141,298 | 1968 | 138,917 | 1967 | 136,615 | 1966 | 134,637 | 1965 | 132,072 | 1964 | 129,479 | 1963 | 126,823 | 1962 | 123,520 | 1961 | 120,014 | 1960 | 117,006 |
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