- 2007 to 2007 2,244
- 2008 to 2008 2,194
- 2009 to 2009 2,229
- 2010 to 2010 2,697
- 2011 to 2011 3,182
- 2012 to 2012 3,323
- 2013 to 2013 3,108
- 2014 to 2014 3,029
- 2015 to 2015 3,064
- 2016 to 2016 3,085
- 2017 to 2017 3,007
- 2018 to 2018 3,022
- 2019 to 2019 2,847
- 2020 to 2020 2,867