| Year | Value | | 2022 | 3,901,641 | | 2021 | 3,874,297 | | 2020 | 3,841,826 | | 2019 | 3,816,926 | | 2018 | 3,781,949 | | 2017 | 3,739,234 | | 2016 | 3,710,316 | | 2015 | 3,681,386 | | 2014 | 3,652,047 | | 2013 | 3,623,046 | | 2012 | 3,594,354 | | 2011 | 3,566,759 | | 2010 | 3,543,701 | | 2009 | 3,522,052 | | 2008 | 3,500,786 | | 2007 | 3,480,295 | | 2006 | 3,459,290 | | 2005 | 3,437,801 | | 2004 | 3,416,335 | | 2003 | 3,393,441 | | 2002 | 3,369,635 | | 2001 | 3,344,658 | | 2000 | 3,317,222 | | 1999 | 3,284,668 | | 1998 | 3,249,542 | | 1997 | 3,213,023 | | 1996 | 3,176,140 | | 1995 | 3,138,032 | | 1994 | 3,099,843 | | 1993 | 3,063,773 | | 1992 | 3,028,205 | | 1991 | 2,993,506 | | 1990 | 2,961,718 | | 1989 | 2,930,304 | | 1988 | 2,897,167 | | 1987 | 2,863,936 | | 1986 | 2,829,098 | | 1985 | 2,790,906 | | 1984 | 2,751,656 | | 1983 | 2,712,201 | | 1982 | 2,672,045 | | 1981 | 2,625,248 | | 1980 | 2,579,754 | | 1979 | 2,519,607 | | 1978 | 2,460,095 | | 1977 | 2,400,928 | | 1976 | 2,342,217 | | 1975 | 2,283,433 | | 1974 | 2,224,504 | | 1973 | 2,165,512 | | 1972 | 2,106,602 | | 1971 | 2,050,606 | | 1970 | 1,998,267 | | 1969 | 1,944,380 | | 1968 | 1,890,124 | | 1967 | 1,836,198 | | 1966 | 1,782,663 | | 1965 | 1,729,540 | | 1964 | 1,676,966 | | 1963 | 1,624,088 | | 1962 | 1,571,915 | | 1961 | 1,520,911 | | 1960 | 1,469,978 |
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