| Year | Franchised | Change | Company-Owned | Change | Total | Change |
|---|---|---|---|---|---|---|
| 2016 | 51 | 0.0% | 1 | 0.0% | 52 | 0.0% |
| 2015 | 51 | 6.25% | 1 | 0.0% | 52 | 6.12% |
| 2014 | 48 | 11.63% | 1 | 0.0% | 49 | 11.36% |
| 2013 | 43 | 7.5% | 1 | 0.0% | 44 | 7.32% |
| 2012 | 40 | 8.11% | 1 | 0.0% | 41 | 7.89% |
| 2011 | 37 | 19.35% | 1 | 0.0% | 38 | 18.75% |
| 2010 | 31 | 3.33% | 1 | 0.0% | 32 | 3.23% |
| 2009 | 30 | -6.25% | 1 | 0.0% | 31 | -6.06% |
| 2008 | 32 | -13.51% | 1 | 0.0% | 33 | -13.16% |
| 2007 | 37 | -- | 1 | -- | 38 | -- |