Year	Number
1990	465872
1991	463498
1992	458090
1993	457400
1994	610396
1995	454821
1996	456524
1997	459355
1998	462837
1999	472283
2000	468730
2001	471911
2002	474976
2003	476623
2004	483519
2005	474772
2006	465546
2007	460378
2008	459257
2009	446082
2010	443907
2011	429047
2012	426124
2013	413068
2014	397641
2015	389733
2016	376056
2017	366573
2018	361243
2019	349504
2020	342325
2021	339441
2022	336049