Year Number 1999 20299.9992370605 2000 13399.9996185303 2001 14500 2002 119500 2003 130100.00610351599 2004 63900.0015258789 2005 50200.000762939504 2006 10800.000190734901 2007 32299.999237060496 2014 8300.00019073486 2015 8199.99980926514 2016 7599.99990463257 2017 7500 2018 9000 2019 12000