Year annual % growth 1997 -8.690861522747724 1998 18.975869209611517 1999 15.424788093717368 2000 49.54039911861037 2001 15.221862044127008 2002 9.816380399778694 2003 5.127608812768813 2004 8.216221257767373 2005 16.19520527075433 2006 8.706127035241835 2007 19.38567926649452 2008 3.6223860777103027 2009 -1.140245800465408 2010 -0.5729495774197346 2011 6.186271287974449 2012 -6.694147373741657 2013 -0.6436293716266164 2014 4.258791676867617 2015 -2.8752064451164756 2016 6.9201214550379575 2017 8.35581362948217 2018 2.396963927026661 2019 2.2896416775674027 2020 -19.789390871026 2021 31.451301098633564 2022 13.133375126646499 2023 1.3307792052295895