Year	Number
1996	32.7957000732422
1998	37.9679145812988
2000	38.2978706359863
2002	51.8518524169922
2003	40.7407417297363
2004	47.290641784668
2005	46.8292694091797
2006	31.7073173522949
2007	25.2427177429199
2008	26.6990299224854
2009	24.8803825378418
2010	20.4761905670166
2011	23.6966819763184
2012	38.3886260986328
2013	41.7061614990234
2014	52.8846168518066
2015	51.4285697937012
2016	47.6190490722656
2017	43.8095245361328
2018	45.238094329834
2019	48.0952377319336
2020	45.7142868041992
2021	48.0952377319336
2022	46.2264137268066