Year annual % 1990 2078.31681806978 1991 140.502378661012 1992 16.0719935356945 1993 -3.56109557576575 1994 2.84933971509302 1995 3.16512339016516 1996 -0.0523754965904146 1997 -0.46391313116429 1998 -1.70527962400085 1999 -1.83655839220664 2000 1.03728710073175 2001 -1.09576771833679 2002 30.555204053903 2003 10.4957030215496 2004 18.3633542492033 2005 10.3175111982406 2006 13.7410524859152 2007 14.9399250245835 2008 23.1711649813124 2009 15.3776493708921 2010 20.915124272047 2011 23.7034721839593 2012 22.3148806733049 2013 23.9487984162746 2014 40.2829716315506 2015 26.5799916024707 2016 41.1193799882279 2017 26.0063792819079 2018 42.0336689575031 2019 49.1955790596612 2020 40.0830878011993 2021 53.8404499043736 2022 69.4712395512144 2023 133.839867291437