| Year | Value | | 2022 | 333,287,557 | | 2021 | 332,031,554 | | 2020 | 331,511,512 | | 2019 | 328,329,953 | | 2018 | 326,838,199 | | 2017 | 325,122,128 | | 2016 | 323,071,755 | | 2015 | 320,738,994 | | 2014 | 318,386,329 | | 2013 | 316,059,947 | | 2012 | 313,877,662 | | 2011 | 311,583,481 | | 2010 | 309,327,143 | | 2009 | 306,771,529 | | 2008 | 304,093,966 | | 2007 | 301,231,207 | | 2006 | 298,379,912 | | 2005 | 295,516,599 | | 2004 | 292,805,298 | | 2003 | 290,107,933 | | 2002 | 287,625,193 | | 2001 | 284,968,955 | | 2000 | 282,162,411 | | 1999 | 279,040,000 | | 1998 | 275,854,000 | | 1997 | 272,657,000 | | 1996 | 269,394,000 | | 1995 | 266,278,000 | | 1994 | 263,126,000 | | 1993 | 259,919,000 | | 1992 | 256,514,000 | | 1991 | 252,981,000 | | 1990 | 249,623,000 | | 1989 | 246,819,000 | | 1988 | 244,499,000 | | 1987 | 242,289,000 | | 1986 | 240,133,000 | | 1985 | 237,924,000 | | 1984 | 235,825,000 | | 1983 | 233,792,000 | | 1982 | 231,664,000 | | 1981 | 229,466,000 | | 1980 | 227,225,000 | | 1979 | 225,055,000 | | 1978 | 222,585,000 | | 1977 | 220,239,000 | | 1976 | 218,035,000 | | 1975 | 215,973,000 | | 1974 | 213,854,000 | | 1973 | 211,909,000 | | 1972 | 209,896,000 | | 1971 | 207,661,000 | | 1970 | 205,052,000 | | 1969 | 202,677,000 | | 1968 | 200,706,000 | | 1967 | 198,712,000 | | 1966 | 196,560,000 | | 1965 | 194,303,000 | | 1964 | 191,889,000 | | 1963 | 189,242,000 | | 1962 | 186,538,000 | | 1961 | 183,691,000 | | 1960 | 180,671,000 |
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