Year Number 2002 29419 2003 23115 2005 17330 2006 14723 2007 10945 2011 9541 2012 8539 2013 3585 2014 2737 2015 525 2016 950 2017 1383 2018 1476 2019 5465 2020 8326 2021 13300 2022 15608