| Year | Target population | Actual population | Participation rate (%) |
|---|---|---|---|
| 2009 | 76,937 | 75,066 | 97.6 |
| 2010 | 74,980 | 73,238 | 97.7 |
| 2011 | 79,202 | 75,643 | 95.5 |
| 2012 | 76,980 | 74,186 | 96.4 |
| 2013 | 75,149 | 72,435 | 96.4 |
| 2014 | 74,167 | 72,060 | 97.2 |
| 2015 | 70,362 | 68,043 | 96.7 |
| 2016 | 67,983 | 65,528 | 96.4 |
| 2017 | 64,991 | 62,276 | 95.8 |
| 2018 | 62,823 | 60,040 | 95.6 |
| 2019 | 60,100 | 57,303 | 95.3 |
| 2020 | 57,925 | 54,948 | 94.9 |
| 2021 | 59,426 | 54,848 | 92.9 |
| Total | 901,025 | 865,614 | 96.0 |