| - | CPI | Kostprijs magazine |
| jan/06 | 84,54 | 77,67 |
| jan/07 | 85,95 | 78,24 |
| jan/08 | 88,92 | 81,56 |
| jan/09 | 90,98 | 83,50 |
| jan/10 | 91,54 | 88,32 |
| jan/11 | 94,49 | 90,14 |
| jan/12 | 97,94 | 92,41 |
| jan/13 | 99,37 | 99,01 |
| jan/14 | 100,50 | 102,56 |
| jan/15 | 99,85 | 106,73 |
| jan/16 | 101,59 | 110,85 |
| jan/17 | 104,28 | 113,55 |
| jan/18 | 106,06 | 115,41 |
| jan/19 | 108,17 | 120,76 |
| jan/20 | 109,69 | 125,20 |