Year	Number
1996	1.00502514839172
1998	1
2000	1.49253726005554
2002	0.497512429952621
2003	2.48756217956543
2004	5.28846168518066
2005	6.22009563446045
2006	8.61244010925293
2007	7.65550231933594
2008	8.65384578704834
2009	11.3744077682495
2010	10.4265403747559
2011	13.1455402374268
2012	13.6150236129761
2013	13.6150236129761
2014	9.13461494445801
2015	11.9047622680664
2016	12.8571424484253
2017	13.8095235824585
2018	15.7142858505249
2019	14.2857141494751
2020	16.1904754638672
2021	15.2380952835083
2022	15.0943393707275