Year annual % growth 1991 6.464764579581413 1992 -4.6436253178428615 1993 -3.3121381225073634 1994 4.654393790928893 1995 10.307379572855965 1996 7.856666529842116 1997 12.720211646458026 1998 18.0553416955283 1999 7.196464394228343 2000 5.371447387991225 2001 6.33265727050501 2002 11.726065520227607 2003 4.8934163299312985 2004 7.158673153256956 2005 10.293580858524294 2006 9.758599887492053 2007 3.564805865505278 2008 2.5532396842820475 2009 1.9757759307204878 2010 3.6137348296904293 2011 2.866996746530617 2012 -4.122541682402968 2013 15.2448407212501 2014 11.888753998135599 2015 13.312472437327784 2016 10.319276732185045 2017 7.2583919000067425 2018 5.922389078115245 2019 5.368182831015815 2020 1.7887456939642163 2021 3.992010599503274