Year annual % 1990 15.902911257507796 1991 128.6297716834465 1992 1490.418424844804 1993 887.8407362340233 1994 307.29805689706086 1995 144.00686716319476 1996 46.03637766834413 1997 15.058503642684556 1998 18.538967341902435 1999 72.38660546614645 2000 37.697928212309705 2001 16.479619357003656 2002 15.661906305459311 2003 13.657136811327476 2004 20.255149577511105 2005 19.27943213441104 2006 15.120406631676445 2007 13.84123923982375 2008 18.01351833508423 2009 1.9706126030591236 2010 14.191109568820707 2011 24.460086062189816 2012 8.907868420878344 2013 5.320138872379147 2014 7.490071116966092 2015 7.249735906788885 2016 2.844222698026428 2017 5.349815087676177 2018 9.997976711483076 2019 3.2631328188168425 2020 0.8982460271952419 2021 19.411589061590377 2022 16.715274060627053 2023 7.07360156603734