Indexing your annuity on INSEE
To index your pension on the INSEE index, we use the index of consumer prices for urban households published by INSEE.
For this, you will need 2 components: the index of the previous year (index month provided by INSEE) and the current year(index month provided by INSEE).
We use the following formula to calculate your new annuity : (pension prev)*(new index)/(index of the previous year)
| ANNEE | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 |
| Janvier | 101.1 | 102.2 | 104.4 | 106.4 | 108.0 | 109.6 | 111.6 | 113.2 | 116.2 | 117.1 |
| Février | 101.2 | 102.5 | 104.6 | 107.1 | 108.4 | 110.2 | 112.2 | 113.4 | 116.4 | |
| Mars | 101.7 | 103.0 | 105.0 | 107.5 | 108.9 | 110.9 | 112.4 | 113.9 | 117.3 | |
| Avril | 101.7 | 103.5 | 105.5 | 107.4 | 109.1 | 111.1 | 112.9 | 114.4 | 117.7 | |
| Mai | 101.9 | 104.1 | 105.6 | 107.3 | 109.5 | 111.2 | 113.3 | 114.7 | 118.4 | |
| Juin | 102.1 | 104.2 | 105.6 | 107.6 | 109.6 | 111.3 | 113.3 | 114.9 | 118.8 | |
| Juillet | 101.9 | 103.9 | 105.5 | 107.5 | 109.3 | 111.0 | 113.1 | 114.5 | 118.5 | |
| Août | 102.1 | 103.9 | 105.7 | 107.7 | 109.5 | 111.4 | 113.5 | 114.9 | 118.4 | |
| Septembre | 102.6 | 104.2 | 106.0 | 108.1 | 109.6 | 111.8 | 113.3 | 115.0 | 118.4 | |
| Octobre | 102.5 | 104.3 | 106.2 | 108.2 | 109.9 | 111.8 | 113.1 | 115.4 | 118.4 | |
| Novembre | 102.8 | 104.0 | 106.2 | 108.0 | 110.0 | 111.6 | 113.3 | 115.9 | 117.9 | |
| Décembre | 102.7 | 104.2 | 106.4 | 108.2 | 110.1 | 111.8 | 113.5 | 116.4 | 117.6 |
For example, the calculation of pension with effect from 1st January 2009: [(20,000*117.1)/116.2] will result : 20154.90.