| 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
| Noord-Holland | 19 579 | 21 926 | 22 661 | 24 918 | 25 508 | 26 264 | 27 461 | 29 014 | 31 727 | 34 194 |
| Noord-Brabant | 168 | 478 | 1 077 | 1 323 | 1 496 | 1 707 | 1 976 | 2 181 | 2 378 | 2 839 |
| Zuid-Holland | 356 | 511 | 464 | 542 | 597 | 747 | 815 | 824 | 822 | 865 |
| Drenthe | 41 | 64 | 61 | 58 | 91 | 88 | 85 | 91 | 76 | 101 |
| Limburg | 180 | 154 | 117 | 166 | 152 | 217 | 122 | 99 | 92 | 86 |