- 2007 to 2007 2,246
- 2008 to 2008 2,195
- 2009 to 2009 2,231
- 2010 to 2010 2,709
- 2011 to 2011 3,188
- 2012 to 2012 3,325
- 2013 to 2013 3,115
- 2014 to 2014 3,031
- 2015 to 2015 3,071
- 2016 to 2016 3,096
- 2017 to 2017 3,013
- 2018 to 2018 3,027
- 2019 to 2019 2,854
- 2020 to 2020 2,869