Year | Value | 2021 | 1,585,996.853 | 2020 | 1,130,964.27 | 2019 | 2,450,088 | 2018 | 2,422,241.3258654 | 2017 | 2,361,676 | 2016 | 2,383,083 | 2015 | 2,447,053 | 2014 | 2,357,197.2718724 | 2013 | 2,253,790.4150769 | 2012 | 2,153,840.9082253 | 2011 | 2,031,106.1462718 | 2010 | 1,932,829.93723 | 2009 | 1,471,241 | 2008 | 1,421,962 | 2007 | 1,464,994 | 2006 | 1,345,358 | 2005 | 1,313,815 | 2004 | 1,266,467 | 2003 | 1,227,248 | 2002 | 1,368,294 | 2001 | 1,446,879 | 2000 | 1,456,463 | 1999 | 1,610,600 | 1998 | 1,492,900 | 1997 | 1,424,700 | 1996 | 1,217,900 | 1995 | 1,149,300 | 1994 | 1,137,200 | 1993 | 1,080,800 | 1992 | 1,017,600 | 1991 | 1,008,200 | 1990 | 996,500 | 1989 | 950,600 | 1988 | 940,300 | 1987 | 975,800 | 1986 | 943,100 | 1985 | 929,700 | 1984 | 941,400 | 1983 | 905,500 | 1982 | 814,300 | 1981 | 737,900 | 1980 | 769,800 | 1979 | 687,200 | 1978 | 649,600 | 1977 | 632,000 | 1976 | 654,400 | 1975 | 634,000 | 1974 | 613,700 | 1973 | 579,900 | 1972 | 566,500 | 1971 | 550,400 | 1970 | 578,000 |
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