How is NLCS home field advantage determined?

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2. #season
3. #advantage
4. #playoff
5. #games
6. #leagues
7. #record
8. #regular
9. #better
10. #field
11. #seven
12. #alternated
13. #every
14. #overall
15. #advance
16. #prior
17. #world
18. #series
19. #winners