| 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | |
|---|---|---|---|---|---|---|---|---|
| Mazowieckie | 3 564 | 4 370 | 4 679 | 4 794 | 5 357 | 6 142 | 6 883 | 7 833 |
| Malopolskie | 1 427 | 1 509 | 1 717 | 1 831 | 1 914 | 2 114 | 2 499 | |
| Pomorskie | 1 109 | 1 238 | 1 398 | 1 401 | 1 743 | 1 976 | 2 186 | |
| Slaskie | 1 197 | 1 263 | 1 269 | 1 285 | 1 354 | 1 537 | 1 617 | |
| Dolnoslaskie | 803 | 803 | 974 | 945 | 1 022 | 1 139 | 1 188 | |
| Wielkopolskie | 698 | 716 | 794 | 675 | 719 | 748 | 849 | |
| Podkarpackie | 248 | 285 | 299 | 303 | 322 | 333 | ||
| Zachodniopomorskie | 123 | 176 | 160 | 153 | 203 | 226 | ||
| Kujawsko-Pomorskie | 140 | 170 | 172 | 158 | 170 | 166 | ||
| Lódzkie | 195 | 235 | 180 | 128 | 145 | 120 |