Year annual % 1990 70.5915492458487 1991 128.761666613631 1992 82.023579840279 1993 26.7363212387903 1994 25.0620437520758 1995 33.5979877376705 1996 29.5804868075411 1997 2.25276836625179 1998 23.775122880697 1999 17.1938519293377 2000 3.28114136455646 2001 71.3519572034367 2002 -3.93416695179114 2003 13.1976867095312 2004 12.8264525018684 2005 16.6157673909282 2006 12.4929903115551 2007 6.60201902152011 2008 9.21371748562095 2009 8.54807025803485 2010 17.4339236484559 2011 17.295115700525 2012 12.0412149954104 2013 6.9591497150643 2014 1.79536394969367 2015 19.6403375168796 2016 5.85170897389122 2017 8.95600062684576 2018 14.0105639435605 2019 7.70278499631038 2020 10.9149570581921 2021 6.69151089014703 2022 25.3319745115446 2023 36.4342929309254