year,number
1999,1579
2000,1243
2001,1573
2002,2436
2003,1603
2004,2779
2005,4901
2006,7256
2007,6767
2008,7325
2009,5164
2010,5351
2011,5341
2012,6739
2013,7525
2014,10562
2015,9706
2016,11367
2017,19574
2018,21931
2019,21615
2020,31397
2021,31034
2022,33547
2023,39863
2024,13083