Year annual % 1990 124.104046242775 1991 100.808167622167 1992 59.6236226966025 1993 47.8519288929306 1994 38.9571823642866 1995 41.0483268728721 1996 26.4317377794743 1997 19.2806854248047 1998 12.3839054585972 1999 3.8829960652083 2000 3.53930849282203 2001 4.82661833265487 2002 12.6162766389703 2003 16.5416351537692 2004 10.1050559964877 2005 0.677868373740196 2006 7.41439912975062 2007 10.3149681755111 2008 8.90238857828685 2009 8.6170745452345 2010 5.74685698442181 2011 9.87542024568336 2012 9.41291247372213 2013 8.99924666884517 2014 10.2206566034525 2015 9.85542032172539 2016 8.16545833991123 2017 5.68018391620799 2018 7.52555040430903 2019 8.25648932486875 2020 10.9764808841065 2021 11.1806219609622 2022 4.24465355140362 2023 3.4309701895517