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Demographic data and data concerning vaccination (number of doses) obtained from official sources and used for calculations.
| Year | 2004 | 2005 | 2006 | 2007 | 2008 |
|---|---|---|---|---|---|
| Number of children aged < 5 years | 1 794 481 | 1 780 631 | 1 794 481 | 1 823 446 | 1 888 342 |
| Number of influenza vaccines given to children aged < 5 years | 22 637 | 33 242 | 26 804 | 19 834 | 20 346 |
| Number of influenza vaccines given in the general population | 1 356 708 | 1 603 125 | 1 371 605 | 1 212 651 | 1 158 878 |
