| Year | Value | | 2022 | 2,553,106 | | 2021 | 2,614,125 | | 2020 | 2,651,274 | | 2019 | 2,659,813 | | 2018 | 2,651,126 | | 2017 | 2,636,014 | | 2016 | 2,633,090 | | 2015 | 2,651,887 | | 2014 | 2,696,113 | | 2013 | 2,755,576 | | 2012 | 2,799,207 | | 2011 | 2,813,415 | | 2010 | 2,798,779 | | 2009 | 2,751,152 | | 2008 | 2,680,304 | | 2007 | 2,623,718 | | 2006 | 2,590,888 | | 2005 | 2,579,131 | | 2004 | 2,588,479 | | 2003 | 2,612,378 | | 2002 | 2,648,784 | | 2001 | 2,706,191 | | 2000 | 2,774,688 | | 1999 | 2,856,241 | | 1998 | 2,952,869 | | 1997 | 3,068,028 | | 1996 | 3,199,462 | | 1995 | 3,348,072 | | 1994 | 3,503,631 | | 1993 | 3,644,434 | | 1992 | 3,774,976 | | 1991 | 3,906,844 | | 1990 | 4,025,373 | | 1989 | 4,119,701 | | 1988 | 4,209,146 | | 1987 | 4,283,661 | | 1986 | 4,330,470 | | 1985 | 4,377,698 | | 1984 | 4,436,603 | | 1983 | 4,494,391 | | 1982 | 4,546,127 | | 1981 | 4,607,131 | | 1980 | 4,663,307 | | 1979 | 4,689,438 | | 1978 | 4,677,767 | | 1977 | 4,623,570 | | 1976 | 4,527,102 | | 1975 | 4,404,955 | | 1974 | 4,281,531 | | 1973 | 4,190,363 | | 1972 | 4,122,544 | | 1971 | 4,023,931 | | 1970 | 3,935,807 | | 1969 | 3,882,518 | | 1968 | 3,844,043 | | 1967 | 3,836,792 | | 1966 | 3,873,787 | | 1965 | 3,957,466 | | 1964 | 4,059,582 | | 1963 | 4,173,455 | | 1962 | 4,312,999 | | 1961 | 4,465,387 | | 1960 | 4,611,335 |
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