| 1970 | 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Belgien | 10.576 | 12.715 | 20.363 | 21.831 | 21.232 | 25.732 | 24.680 | 22.083 | 18.142 | 21.364 | ||
| Luxemburg | 3.181 | 5.588 | 6.040 | 5.918 | 5.828 | 5.798 | 5.968 | 5.257 | 4.148 | 4.300 | ||
| Niederlande | 11.084 | 13.315 | 2.850 | 4.349 | 5.170 | 3.193 | 3.598 | 4.734 | 4.531 | 4.370 | 2.786 | 3.683 |