Year | Value | 2022 | 290,471,056 | 2021 | 293,742,711 | 2020 | 296,460,594 | 2019 | 298,376,025 | 2018 | 299,541,972 | 2017 | 299,863,917 | 2016 | 299,156,327 | 2015 | 297,901,694 | 2014 | 296,310,307 | 2013 | 294,150,671 | 2012 | 291,285,509 | 2011 | 288,095,263 | 2010 | 285,080,079 | 2009 | 282,062,776 | 2008 | 279,043,359 | 2007 | 276,392,215 | 2006 | 274,342,071 | 2005 | 272,685,483 | 2004 | 270,923,649 | 2003 | 269,035,933 | 2002 | 267,373,393 | 2001 | 266,038,240 | 2000 | 265,159,469 | 1999 | 264,891,105 | 1998 | 265,201,710 | 1997 | 265,793,434 | 1996 | 266,717,965 | 1995 | 268,850,273 | 1994 | 271,710,544 | 1993 | 273,897,821 | 1992 | 275,683,111 | 1991 | 276,777,249 | 1990 | 275,417,765 | 1989 | 271,855,009 | 1988 | 267,922,405 | 1987 | 263,770,874 | 1986 | 259,366,221 | 1985 | 254,776,794 | 1984 | 250,201,307 | 1983 | 245,421,099 | 1982 | 239,904,100 | 1981 | 234,716,989 | 1980 | 231,067,195 | 1979 | 228,737,309 | 1978 | 227,958,020 | 1977 | 228,234,113 | 1976 | 228,566,631 | 1975 | 228,844,158 | 1974 | 228,569,641 | 1973 | 227,310,801 | 1972 | 224,710,453 | 1971 | 221,295,894 | 1970 | 217,857,729 | 1969 | 214,485,556 | 1968 | 211,944,356 | 1967 | 209,542,172 | 1966 | 204,143,232 | 1965 | 196,209,880 | 1964 | 188,442,530 | 1963 | 180,572,572 | 1962 | 174,556,397 | 1961 | 173,096,605 | 1960 | 174,763,062 |
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