| Year | Value | | 2022 | 1,502,629 | | 2021 | 1,672,964 | | 2020 | 1,745,906 | | 2019 | 1,810,949 | | 2018 | 1,849,502 | | 2017 | 1,864,026 | | 2016 | 1,860,405 | | 2015 | 1,831,679 | | 2014 | 1,801,797 | | 2013 | 1,778,363 | | 2012 | 1,750,209 | | 2011 | 1,735,938 | | 2010 | 1,731,359 | | 2009 | 1,740,618 | | 2008 | 1,738,800 | | 2007 | 1,698,880 | | 2006 | 1,632,333 | | 2005 | 1,518,172 | | 2004 | 1,365,063 | | 2003 | 1,238,559 | | 2002 | 1,178,978 | | 2001 | 1,211,189 | | 2000 | 1,345,404 | | 1999 | 1,540,169 | | 1998 | 1,764,959 | | 1997 | 1,992,800 | | 1996 | 2,114,291 | | 1995 | 2,114,352 | | 1994 | 2,013,314 | | 1993 | 1,818,232 | | 1992 | 1,618,032 | | 1991 | 1,495,851 | | 1990 | 1,487,775 | | 1989 | 1,581,422 | | 1988 | 1,742,443 | | 1987 | 1,884,796 | | 1986 | 1,976,599 | | 1985 | 2,025,496 | | 1984 | 2,030,776 | | 1983 | 2,007,659 | | 1982 | 1,955,844 | | 1981 | 1,878,436 | | 1980 | 1,765,696 | | 1979 | 1,639,105 | | 1978 | 1,527,581 | | 1977 | 1,395,481 | | 1976 | 1,261,411 | | 1975 | 1,210,499 | | 1974 | 1,255,101 | | 1973 | 1,333,291 | | 1972 | 1,463,335 | | 1971 | 1,636,088 | | 1970 | 1,742,941 | | 1969 | 1,747,287 | | 1968 | 1,700,892 | | 1967 | 1,637,682 | | 1966 | 1,579,438 | | 1965 | 1,518,246 | | 1964 | 1,450,549 | | 1963 | 1,412,633 | | 1962 | 1,383,385 | | 1961 | 1,332,444 | | 1960 | 1,316,839 |
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