| Year | Pension insurance fund (%) | Social insurance (%) | Inflation (%) |
| 2009 | 2.2 | 16.12 | −0.70 |
| 2010 | 2.0 | 4.23 | 3.30 |
| 2011 | 2.5 | 5.58 | 5.40 |
| 2012 | 2.6 | 7.01 | 2.60 |
| 2013 | 2.4 | 6.20 | 2.60 |
| 2014 | 2.9 | 11.69 | 2.42 |