Year	%
2000	2.42296051520937
2001	2.12548696776062
2002	2.00912422668608
2003	1.92543858402764
2004	1.90938542492288
2005	1.77568973416632
2006	1.54249860146171
2007	1.49976373327886
2008	1.49836868225249
2009	1.43293032314799
2010	1.43045302604036
2011	1.35228537099132
2012	1.30502451576189
2013	1.30429677542633
2014	1.22796963306954
2015	1.22500170515524
2016	1.02580318401212
2017	1.08790466820375
2018	1.08370845664309
2019	0.891108596029161
2020	0.961327761929554