| Year | Sample size (questionnaire) | |||||
|---|---|---|---|---|---|---|
| shopping | work | transit | other | non-tourist purpose, total | grand total | |
| 2009 | 15 681 | 4 847 | 17 443 | 498 | 39 308 | 64 858 |
| 2010 | 12 882 | 4 302 | 14 094 | 383 | 32 574 | 57 448 |
| 2011 | 13 027 | 3 973 | 14 228 | 458 | 32 502 | 55 376 |
| 2012 | 13 211 | 4 256 | 13 288 | 258 | 31 892 | 55 703 |
| 2013 | 12 149 | 3 880 | 11 386 | 302 | 28 465 | 52 268 |
| 2014 | 11 087 | 4 230 | 11 936 | 502 | 28 587 | 52 265 |
| 2015 | 10 087 | 3 459 | 10 344 | 549 | 25 196 | 49 188 |
| 2016 | 10 950 | 3 569 | 10 658 | 368 | 26 112 | 50 285 |
| 2017 | 10 466 | 3 407 | 10 061 | 479 | 24 877 | 48 109 |
| 2018 | 9 763 | 3 424 | 9 710 | 624 | 23 948 | 44 249 |
| 2019 | 10 404 | 3 860 | 8 631 | 881 | 24 204 | 45 592 |