Year	Number
1990	6743
1991	15559
1992	78180
1993	86534
1994	123480
1995	124851
1996	127727
1997	119408
1998	110895
1999	273820
2000	234684
2001	186186
2002	143888
2003	107481
2004	109026
2005	110776
2006	113214
2007	116419
2008	111989
2009	97423
2010	84261
2011	68046
2012	52520
2013	39297
2014	31911
2015	26234
2016	19957
2017	16601
2018	16268
2019	15803
2020	15232
2021	15858
2022	13939
2023	14742