| Year | Value | | 2022 | 1,867,372 | | 2021 | 1,908,731 | | 2020 | 1,948,752 | | 2019 | 1,966,270 | | 2018 | 1,964,059 | | 2017 | 1,952,874 | | 2016 | 1,937,159 | | 2015 | 1,917,156 | | 2014 | 1,899,339 | | 2013 | 1,888,729 | | 2012 | 1,883,945 | | 2011 | 1,872,200 | | 2010 | 1,855,281 | | 2009 | 1,842,842 | | 2008 | 1,822,013 | | 2007 | 1,779,342 | | 2006 | 1,729,320 | | 2005 | 1,685,275 | | 2004 | 1,637,443 | | 2003 | 1,588,659 | | 2002 | 1,547,004 | | 2001 | 1,503,896 | | 2000 | 1,456,455 | | 1999 | 1,406,251 | | 1998 | 1,358,234 | | 1997 | 1,316,328 | | 1996 | 1,280,318 | | 1995 | 1,249,846 | | 1994 | 1,231,041 | | 1993 | 1,226,808 | | 1992 | 1,223,024 | | 1991 | 1,212,733 | | 1990 | 1,211,224 | | 1989 | 1,211,123 | | 1988 | 1,195,306 | | 1987 | 1,165,166 | | 1986 | 1,127,982 | | 1985 | 1,098,129 | | 1984 | 1,057,720 | | 1983 | 1,005,860 | | 1982 | 986,237 | | 1981 | 1,014,190 | | 1980 | 1,044,274 | | 1979 | 1,080,507 | | 1978 | 1,141,552 | | 1977 | 1,188,180 | | 1976 | 1,201,706 | | 1975 | 1,206,427 | | 1974 | 1,213,056 | | 1973 | 1,207,860 | | 1972 | 1,194,056 | | 1971 | 1,181,883 | | 1970 | 1,163,354 | | 1969 | 1,144,923 | | 1968 | 1,131,995 | | 1967 | 1,119,024 | | 1966 | 1,105,814 | | 1965 | 1,092,514 | | 1964 | 1,068,526 | | 1963 | 1,037,242 | | 1962 | 1,006,237 | | 1961 | 975,175 | | 1960 | 947,957 |
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