| Year | Value | | 2022 | 1,261,012 | | 2021 | 1,357,207 | | 2020 | 1,340,203 | | 2019 | 1,339,573 | | 2018 | 1,364,886 | | 2017 | 1,402,964 | | 2016 | 1,449,337 | | 2015 | 1,506,105 | | 2014 | 1,557,372 | | 2013 | 1,590,436 | | 2012 | 1,600,627 | | 2011 | 1,593,434 | | 2010 | 1,564,027 | | 2009 | 1,533,113 | | 2008 | 1,507,759 | | 2007 | 1,487,613 | | 2006 | 1,482,446 | | 2005 | 1,489,325 | | 2004 | 1,507,925 | | 2003 | 1,516,098 | | 2002 | 1,489,740 | | 2001 | 1,434,599 | | 2000 | 1,333,141 | | 1999 | 1,195,579 | | 1998 | 1,079,842 | | 1997 | 1,023,027 | | 1996 | 1,049,587 | | 1995 | 1,171,372 | | 1994 | 1,346,366 | | 1993 | 1,544,262 | | 1992 | 1,746,346 | | 1991 | 1,855,811 | | 1990 | 1,862,832 | | 1989 | 1,793,405 | | 1988 | 1,634,661 | | 1987 | 1,455,946 | | 1986 | 1,340,795 | | 1985 | 1,320,165 | | 1984 | 1,385,999 | | 1983 | 1,507,357 | | 1982 | 1,614,583 | | 1981 | 1,666,329 | | 1980 | 1,647,298 | | 1979 | 1,580,350 | | 1978 | 1,479,923 | | 1977 | 1,348,102 | | 1976 | 1,222,224 | | 1975 | 1,104,662 | | 1974 | 997,871 | | 1973 | 915,361 | | 1972 | 837,381 | | 1971 | 763,189 | | 1970 | 730,467 | | 1969 | 748,910 | | 1968 | 785,270 | | 1967 | 853,084 | | 1966 | 940,217 | | 1965 | 1,004,141 | | 1964 | 1,027,345 | | 1963 | 1,018,188 | | 1962 | 999,251 | | 1961 | 981,736 | | 1960 | 953,737 |
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