Year	Number
1996	44.2622947692871
1998	50.8196716308594
2000	53.0054626464844
2002	45.9459457397461
2003	48.6486473083496
2004	51.7412948608398
2005	44.6078414916992
2006	50.7317085266113
2007	47.5728149414063
2008	45.1456298828125
2009	50.2392349243164
2010	49.7607650756836
2011	52.1327018737793
2012	48.3412322998047
2013	43.6018943786621
2014	52.4038467407227
2015	57.1428565979004
2016	57.1428565979004
2017	57.6190490722656
2018	48.5714302062988
2019	42.3809509277344
2020	29.5238094329834
2021	34.2857131958008
2022	34.9056587219238