Year	annual %
1998	32.971451548049856
1999	25.69801431307328
2000	160.8075057134838
2001	92.60853523551839
2002	52.76004086584509
2003	27.8685929254402
2004	31.933001454269377
2005	42.16750300269514
2006	38.68862651669101
2007	42.109352211057114
2008	9.667209135314996
2009	21.510846599056574
2010	12.874172745743817
2011	10.263800832553999
2012	9.421204656754934
2013	4.5729091032126306
2014	7.648055332395859
2015	6.564154731449763
2016	11.553307389865894
2017	3.567219631983154
2018	14.521578027171197
2019	8.353990440696055
2020	18.105022304096916
2021	13.293355889864383
2022	6.8587188709312255
2023	12.65864460492778