| 1990 | 2000 | 2005 | 2010 | 2011 | |
|---|---|---|---|---|---|
| Castilla y León | 41.00 | 26.00 | 21.60 | 22.07 | 23.24 |
| Galicia | 99.80 | 21.50 | 20.80 | 18.63 | 19.47 |
| Andalucía | 30.10 | 23.60 | 21.70 | 14.29 | 14.40 |
| Castilla-La Mancha | 12.00 | 8.80 | 3.50 | 3.70 | 3.90 |
| Región de Murcia | 4.80 | 3.00 | 2.20 | 2.28 | 2.32 |
| La Rioja | 7.60 | 3.20 | 1.90 | 1.74 | 1.93 |
| Comunidad Valenciana | 8.60 | 5.30 | 2.80 | 1.77 | 1.81 |
| País Vasco | 10.50 | 3.50 | 2.40 | 1.79 | 1.78 |
| Principado de Asturias | 4.30 | 3.10 | 3.00 | 1.75 | 1.52 |
| Cataluña | 16.10 | 4.80 | 2.90 | 1.61 | 1.44 |
| Islas Baleares | 4.10 | 3.10 | 1.90 | 1.39 | 1.38 |
| Extremadura | 6.50 | 2.10 | 1.70 | 1.31 | 1.11 |
| Comunidad Foral de Navarra | 3.50 | 1.10 | 1.00 | 0.57 | 0.59 |
| Aragón | 8.10 | 1.60 | 0.90 | 0.13 | 0.34 |
| Cantabria | 3.00 | 0.90 | 0.60 | 0.28 | 0.31 |
| Comunidad de Madrid | 3.50 | 1.10 | 1.20 | ||
| Islas Canarias | 7.60 | 6.00 | 4.90 |