Year annual % 1990 36.6075313270352 1991 25.1198370187063 1992 14.0829206349286 1993 12.2200349582446 1994 12.5733704419943 1995 11.076427188031 1996 11.4214482360733 1997 3.41098924066357 1998 16.2585763328884 1999 10.6801279115958 2000 14.6645054427207 2001 13.9356046926921 2002 17.949384209928 2003 15.144324650951 2004 11.8350052238006 2005 12.9528241180261 2006 8.8558326538908 2007 12.6355056430918 2008 12.2247550551932 2009 3.64796491881232 2010 4.65570138250342 2011 5.09571053875749 2012 4.79827587865157 2013 4.33767609515789 2014 2.85700648471038 2015 1.60388801037963 2016 4.13475444403026 2017 2.15920929174615 2018 1.96024819846549 2019 3.06187945458328 2020 2.20392146778615 2021 8.44812602664209 2022 8.05446050272607 2023 2.06875531020788