By my count here are the FINA points ranking, the top 16 will be allowed to send 4 male and 4 female swimmers to the Youth Olympics. The points were calculated by adding up all of the results of each swimmer at the latest stage of an event (finals > semis > prelims)
1. - 68004
2. - 58998
3. - 51642
4. - 49912
5. - 48253
6. - 40188
7. - 39789
8. - 39496
9. - 39417
10. - 29246
11. - 26804
12. - 22780
13. - 22062
14. - 21747
15. - 21591
16. - 20814
17. - 20288
18. - 20046
19. - 19979
20. - 19658
21. - 19626
22. - 19619
23. - 18864
24. - 17283
25. - 16948
26. - 15919
27. - 15457
28. - 15034
29. - 14687
30. - 13975
Overall there wasn't a lot of movement in the second half among the top nations. South Africa was able to move into the Top 16 meaning it won't take a continental spot meaning Germany will qualify. Spain had a terrible second half and drops out of the top 16. New Zealand on the other hand had a great second half, but just missed breaking into the top 16. Mexico, Belarus and France entered the top 30 while Switzerland, Hong Kong and Slovenia drop out.