Year | Value | 2022 | 2,330,181 | 2021 | 2,331,704 | 2020 | 2,383,942 | 2019 | 2,456,898 | 2018 | 2,518,512 | 2017 | 2,561,595 | 2016 | 2,579,581 | 2015 | 2,551,265 | 2014 | 2,498,855 | 2013 | 2,457,221 | 2012 | 2,429,385 | 2011 | 2,420,882 | 2010 | 2,474,174 | 2009 | 2,481,776 | 2008 | 2,475,962 | 2007 | 2,453,247 | 2006 | 2,413,756 | 2005 | 2,362,067 | 2004 | 2,317,664 | 2003 | 2,295,441 | 2002 | 2,305,749 | 2001 | 2,367,380 | 2000 | 2,479,526 | 1999 | 2,630,608 | 1998 | 2,812,602 | 1997 | 3,000,079 | 1996 | 3,159,977 | 1995 | 3,285,631 | 1994 | 3,382,797 | 1993 | 3,445,213 | 1992 | 3,457,993 | 1991 | 3,432,023 | 1990 | 3,381,162 | 1989 | 3,299,357 | 1988 | 3,193,710 | 1987 | 3,090,402 | 1986 | 2,993,807 | 1985 | 2,904,050 | 1984 | 2,840,874 | 1983 | 2,803,734 | 1982 | 2,780,645 | 1981 | 2,763,677 | 1980 | 2,749,852 | 1979 | 2,728,643 | 1978 | 2,686,495 | 1977 | 2,622,785 | 1976 | 2,527,034 | 1975 | 2,390,718 | 1974 | 2,305,473 | 1973 | 2,307,206 | 1972 | 2,331,101 | 1971 | 2,437,317 | 1970 | 2,671,715 | 1969 | 2,875,438 | 1968 | 2,974,508 | 1967 | 3,053,586 | 1966 | 3,072,189 | 1965 | 3,001,741 | 1964 | 2,898,308 | 1963 | 2,758,027 | 1962 | 2,605,505 | 1961 | 2,484,229 | 1960 | 2,395,995 |
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