Year Number 2007 333304 2008 338971 2009 334355 2010 322766 2011 316241 2012 313321 2013 309015 2014 297460 2015 278071 2016 263010 2017 253070 2018 247714 2019 240189 2020 234497 2021 230773 2022 229186 2023 225691