Year	Number
1996	34.5
1998	27.3631839752197
2000	26.8656711578369
2002	26.3681583404541
2003	26.8656711578369
2004	33.6538467407227
2005	35.0961532592773
2006	25.9615383148193
2007	26.4423084259033
2008	25.9615383148193
2009	28.9099521636963
2010	28.9099521636963
2011	28.6384983062744
2012	30.5164318084717
2013	30.5164318084717
2014	30.0492610931396
2015	28.5714282989502
2016	29.5566501617432
2017	30.5418720245361
2018	36.4077682495117
2019	37.1980667114258
2020	35.2657012939453
2021	34.7826080322266
2022	39.1304359436035