| Year | Value | | 2022 | 896,969,751 | | 2021 | 913,160,087 | | 2020 | 929,057,798 | | 2019 | 944,110,384 | | 2018 | 958,686,489 | | 2017 | 972,805,832 | | 2016 | 986,165,117 | | 2015 | 999,518,506 | | 2014 | 1,012,621,525 | | 2013 | 1,025,177,136 | | 2012 | 1,037,163,477 | | 2011 | 1,048,832,526 | | 2010 | 1,061,912,605 | | 2009 | 1,077,200,905 | | 2008 | 1,092,172,253 | | 2007 | 1,106,778,883 | | 2006 | 1,121,007,938 | | 2005 | 1,135,152,972 | | 2004 | 1,149,628,884 | | 2003 | 1,163,745,761 | | 2002 | 1,177,113,683 | | 2001 | 1,189,649,329 | | 2000 | 1,199,384,777 | | 1999 | 1,204,549,702 | | 1998 | 1,208,144,007 | | 1997 | 1,210,273,658 | | 1996 | 1,211,292,861 | | 1995 | 1,211,741,079 | | 1994 | 1,211,461,198 | | 1993 | 1,210,182,055 | | 1992 | 1,208,119,876 | | 1991 | 1,205,008,972 | | 1990 | 1,200,401,495 | | 1989 | 1,194,126,146 | | 1988 | 1,186,975,383 | | 1987 | 1,178,896,737 | | 1986 | 1,170,570,356 | | 1985 | 1,162,684,979 | | 1984 | 1,155,209,599 | | 1983 | 1,147,727,721 | | 1982 | 1,138,789,254 | | 1981 | 1,130,932,000 | | 1980 | 1,124,355,757 | | 1979 | 1,117,566,106 | | 1978 | 1,109,663,033 | | 1977 | 1,098,487,834 | | 1976 | 1,084,342,234 | | 1975 | 1,069,239,115 | | 1974 | 1,051,653,722 | | 1973 | 1,033,652,753 | | 1972 | 1,013,342,556 | | 1971 | 991,128,771 | | 1970 | 966,972,620 | | 1969 | 943,531,315 | | 1968 | 920,658,952 | | 1967 | 899,167,961 | | 1966 | 878,417,852 | | 1965 | 856,342,071 | | 1964 | 836,684,442 | | 1963 | 822,693,971 | | 1962 | 808,060,434 | | 1961 | 802,587,178 | | 1960 | 807,252,199 |
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