Here are some recent figures on the demographics of the ten most populaous countries in Europe, and the ten most populous Muslim countries in the world (ie, >60% Muslim). Turkey is in both groups of course.
Ten Most Populous Countries in Europe:
Country Name // Birth Rate // Fertility Rate
1. Russia // 10.7 // 1.41
2. Germany // 8.2 // 1.41
3. Turkey // 18.4 // 2.21
4. France // 12.2 //1.98
5. UK // 12.0 // 1.66
6. Spain // 10.8 // 1.31
7. Poland // 9.5 // 1.28
8. Romania // 9.8 // 1.39
9. Netherlands // 11.1 // 1.66
10. Greece // 9.3 // 1.37
(Red indicates a TFR below replacement level--all countries but Turkey are below replacement level.)
Ten Most Populous Muslim Countries (over 60% Muslim)
1. Indonesia // 18.7 // 2.31
2. Pakistan // 27.2 // 3.6
3. Bangladesh // 24.8 // 2.74
4. Egypt // 24.2 // 2.66
5. Turkey // 18.4 // 2.21
6. Iran // 20.3 // 1.71
7. Sudan // 31.5 // 4.48
8. Algeria // 20.8 // 1.79
9. Morocco // 20.5 // 2.51
10. Afghanistan // 48.2 // 6.53
The first column is births per 1000 people, and the second is the avg number of children a woman will give birth to during her life.