Year | Value | 2022 | 186,929 | 2021 | 181,375 | 2020 | 176,722 | 2019 | 172,696 | 2018 | 169,425 | 2017 | 166,544 | 2016 | 163,911 | 2015 | 162,470 | 2014 | 162,240 | 2013 | 161,955 | 2012 | 161,045 | 2011 | 159,183 | 2010 | 155,884 | 2009 | 151,997 | 2008 | 149,023 | 2007 | 147,730 | 2006 | 147,926 | 2005 | 148,512 | 2004 | 148,277 | 2003 | 146,570 | 2002 | 142,942 | 2001 | 137,509 | 2000 | 130,856 | 1999 | 123,495 | 1998 | 116,110 | 1997 | 109,363 | 1996 | 103,565 | 1995 | 98,074 | 1994 | 92,389 | 1993 | 86,617 | 1992 | 80,411 | 1991 | 73,470 | 1990 | 66,114 | 1989 | 58,972 | 1988 | 53,098 | 1987 | 49,972 | 1986 | 50,160 | 1985 | 52,975 | 1984 | 57,389 | 1983 | 62,629 | 1982 | 67,707 | 1981 | 71,596 | 1980 | 74,001 | 1979 | 74,411 | 1978 | 72,246 | 1977 | 68,562 | 1976 | 65,266 | 1975 | 63,233 | 1974 | 62,138 | 1973 | 62,035 | 1972 | 62,511 | 1971 | 62,038 | 1970 | 59,785 | 1969 | 56,044 | 1968 | 50,940 | 1967 | 44,875 | 1966 | 39,220 | 1965 | 34,816 | 1964 | 31,418 | 1963 | 28,857 | 1962 | 27,252 | 1961 | 26,360 | 1960 | 26,055 |
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