Year	Number
1996	1.61290323734283
1998	2.13903737068176
2000	1.59574472904205
2002	3.17460322380066
2003	1.58730161190033
2004	0.492610841989517
2005	0.487804889678955
2006	0.487804889678955
2007	0.485436886548996
2008	0.970873773097992
2009	0.478468894958496
2010	0.476190477609634
2011	0.947867274284363
2012	13.7440757751465
2013	16.1137447357178
2014	20.1923084259033
2015	21.4285717010498
2016	31.9047622680664
2017	32.3809509277344
2018	30
2019	29.5238094329834
2020	27.1428565979004
2021	15.7142858505249
2022	12.7358493804932