Year	%
1993	1.34597736310798
1994	1.10658124635993
1995	0.6326024165005489
1996	0.8044505968083159
1997	2.0414096916299598
1998	1.81523704155712
1999	0.500486242767753
2000	2.81858508200852
2001	0.560605235944048
2010	1.5366673526788799
2011	2.56550600763653
2018	0.3168
2019	0.4058
2020	0.2251