How long did it take George RR Martin to write each book?

Related questions

1. How does Got end in books?
2. Does George RR Martin have a son?
3. What has George RR Martin written?
4. Will there be another game of thrones book?
5. What happens in Got book ending?
6. Will A Song of Ice and Fire end like the show?
7. Are the books of Game of Thrones finished?
8. What order are the Game of Thrones books?
9. How much is George Clooney's Tequila?
10. Is there a prequel to the game of thrones?

Tags

1. #dance
2. #fifth
3. #published
4. #years
5. #essos
6. #continents
7. #takes
8. #place
9. #writing
10. #sixth
11. #martin
12. #dragons
13. #write
14. #novel
15. #series
16. #westeros
17. #recent
18. #winds
19. #winter
20. #currently
21. #fictional
22. #volume