Year annual % 1990 58.2443981066746 1991 59.1641068909336 1992 65.1994382769795 1993 68.3794283559812 1994 104.749137215122 1995 86.007542441817 1996 77.223512216706 1997 81.4548625820616 1998 75.6793594360352 1999 54.2799583040521 2000 49.3607762430324 2001 52.9797606802043 2002 37.5748208317121 2003 23.2892809893822 2004 12.427511075424 2005 7.08541612916396 2006 9.37620636352707 2007 6.1997582025374 2008 12.046153593928 2009 5.44644910319889 2010 7.00928360259741 2011 8.20084709330651 2012 7.42267328660553 2013 6.2801096970818 2014 7.38951863770303 2015 7.84491693010263 2016 8.13047807814451 2017 10.9824216683285 2018 16.5122794615027 2019 13.8677352522894 2020 14.7893757412251 2021 28.9730164131403 2022 96.0361149639913 2023 67.4734154033494