Year | Value | 2021 | 381,188.363 | 2020 | 261,972.271 | 2019 | 677,578.545 | 2018 | 641,097 | 2017 | 579,842 | 2016 | 566,775 | 2015 | 534,895 | 2014 | 486,353.8 | 2013 | 465,558.909 | 2012 | 471,440.88688639 | 2011 | 535,074 | 2010 | 546,298.85388598 | 2009 | 547,971 | 2008 | 616,893 | 2007 | 657,606 | 2006 | 602,978 | 2005 | 586,438 | 2004 | 549,963 | 2003 | 518,836 | 2002 | 493,019 | 2001 | 517,481 | 2000 | 485,856 | 1999 | 414,200 | 1998 | 387,900 | 1997 | 370,400 | 1996 | 332,800 | 1995 | 313,200 | 1994 | 282,300 | 1993 | 282,200 | 1992 | 289,700 | 1991 | 262,600 | 1990 | 244,700 | 1989 | 225,500 | 1988 | 207,200 | 1987 | 183,000 | 1986 | 180,400 | 1985 | 181,700 | 1984 | 184,900 | 1983 | 194,000 | 1982 | 191,000 | 1981 | 188,700 | 1980 | 207,900 | 1979 | 214,200 | 1978 | 209,300 | 1977 | 192,700 | 1976 | 184,500 | 1975 | 181,800 | 1974 | 178,800 | 1973 | 176,400 | 1972 | 167,300 | 1971 | 159,400 | 1970 | 146,900 |
|