Year annual % growth 1991 31.366412392543822 1992 33.3993922378456 1993 13.61531380336696 1994 11.85195567737074 1995 6.724948201986237 1996 8.73380766597269 1997 -3.8918847948875595 1998 7.420459385991364 1999 1.618979885083533 2000 0.31824673232785017 2001 -1.5536518720323613 2002 2.361424261946226 2003 -14.715681951400825 2004 21.751713865615656 2005 0.6567441048219251 2006 -1.9016803012380024 2007 8.629720790286456 2008 3.666080746472815 2009 15.828434563166113 2010 2.5722894596343053 2011 -7.41453097955079 2012 2.839924450761572 2013 -4.408600485608019 2014 -6.381310249622786 2015 5.9182274239248045 2016 8.087654834303137 2017 4.468719610459161 2018 -2.1724131541955245 2019 -4.471516911315021 2020 -24.030909567037924 2021 -15.1494015449735