| CITY/YEAR | 2013 | 2014 | 2015 | 2016 |
| Shenzhen | 99.4% (631/635) | 99.7% (634/636) | 99.8% (635/636) | 99% (803/811) |
| Beijing | 97.1% (403/415) | 100% (543/543) | 100% (543/543) | 100% (945/945) |
| Shanghai | 100% (191/191) | 100% (190/190) | 100% (191/191) | 100% (310/310) |
| Tianjin | 96.5% (110-114) | 99.1% (111/112) | 100% (109/109) | 100% (109/109) |
| Guangdong | 98.9% (182/184) | 98.9% (182/184) | 100% (186/186) | 100% (244/244) |
| Hubei | Temporarily not released | 100% (138/138) | 100% (168/168) | Temporarily not released |
| Fujian | Temporarily not released | Temporarily not released | Temporarily not released | 98.6% (273/277) |