Year	Number
1996	0.747216463088989
1998	0.352688670158386
2000	0.821868121623993
2002	1.17097854614258
2003	0.963294148445129
2004	0.775293171405792
2005	0.878712356090546
2006	0.646906971931458
2007	0.668377757072449
2008	0.539784848690033
2009	0.609987437725067
2010	0.597042262554169
2011	0.606538891792297
2012	0.471134811639786
2013	0.491320788860321
2014	0.791901171207428
2015	0.711831986904144
2016	0.787600100040436
2017	0.783370971679688
2018	0.831077039241791
2019	0.636659681797028
2020	0.71777218580246
2021	0.705798923969269
2022	0.533999085426331