| 2000 | 2008 | 2014 | |||
| National | Immigrant | National | Immigrant | National | Immigrant |
Alava | 0.8852 | 0.9209 | 0.8767 | 0.9170 | 0.8787 | 0.9112 |
Guipuzcoa | 0.7444 | 0.7864 | 0.7352 | 0.7751 | 0.7319 | 0.7588 |
Biscay | 0.8099 | 0.8730 | 0.7971 | 0.8453 | 0.7910 | 0.8392 |
Basque Country | 0.8148 | 0.8632 | 0.8035 | 0.8484 | 0.7998 | 0.8385 |