Year | Value | 2022 | 281,972 | 2021 | 271,729 | 2020 | 262,815 | 2019 | 255,697 | 2018 | 249,656 | 2017 | 244,572 | 2016 | 239,656 | 2015 | 235,915 | 2014 | 233,606 | 2013 | 232,389 | 2012 | 231,987 | 2011 | 232,375 | 2010 | 232,268 | 2009 | 230,658 | 2008 | 227,700 | 2007 | 223,380 | 2006 | 217,630 | 2005 | 210,753 | 2004 | 203,438 | 2003 | 195,887 | 2002 | 188,790 | 2001 | 183,710 | 2000 | 181,022 | 1999 | 179,498 | 1998 | 178,526 | 1997 | 178,307 | 1996 | 178,050 | 1995 | 177,572 | 1994 | 177,210 | 1993 | 176,484 | 1992 | 175,584 | 1991 | 175,386 | 1990 | 175,255 | 1989 | 174,656 | 1988 | 174,366 | 1987 | 174,294 | 1986 | 174,442 | 1985 | 174,237 | 1984 | 171,521 | 1983 | 166,166 | 1982 | 160,044 | 1981 | 153,543 | 1980 | 147,843 | 1979 | 147,032 | 1978 | 150,788 | 1977 | 155,793 | 1976 | 161,023 | 1975 | 165,676 | 1974 | 168,420 | 1973 | 169,711 | 1972 | 170,191 | 1971 | 169,867 | 1970 | 169,188 | 1969 | 167,568 | 1968 | 164,832 | 1967 | 162,397 | 1966 | 161,127 | 1965 | 159,322 | 1964 | 157,081 | 1963 | 154,996 | 1962 | 152,158 | 1961 | 148,328 | 1960 | 144,401 |
|