From descending order lists found at:
http://www.tfrrs.org/view_list.html#22
Women's JT- 2, 3, 4, 8, 6, 9, 10, 1, 35, 21, 48, 7
12 Qualified to Finals, 3/12 were not seeded to make it to the National Meet.
Women's LJ- 7, 39, 1, 31, 13, 25, 2, 11, 31, 4, 48, 13
12 Qualified to Finals, 8/12 were not seeded to make it to the National Meet.
Women's SP- 1, 2, 11, 5, 4, 3, 7, 10, 24, 15, 6, 27
12 Qualified to Finals, 3/12 were not seeded to make it to the National Meet.
Women's HJ- 13, 16, 13, 7, 35, 2, 2, 35, 6, 13, 20, 5
12 Qualified to Finals, 7/12 were not seeded to make it to the National Meet.
Women's 10000m- 3, 23, 8, 1, 13, 2, 25, 24, 15, 4, 12, 7
12 Qualified to Finals, 5/12 were not seeded to make it to the National Meet.
Men's HT- 6, 4, 2, 1, 8, 9, 6, 10, 12, 11, 25, 13
12 Qualified to Finals, 2/12 were not seeded to make it to the National Meet.
Men's PV- 13, 1, 7, 1, 21, 9, 14, 39, 4, 21, 15, 7
12 Qualified to Finals, 6/12 were not seeded to make it to the National Meet.
Men's LJ- 1, 8, 4, 16, 11, 7, 3, 20, 18, 9, 2, 19
12 Qualified to Finals, 4/12 were not seeded to make it to the National Meet.
Men's 10000m- 1, 20, 23, 5, 10, 44, 38, 19, 2, 28, 7, 63
12 Qualified to Finals, 7/12 were not seeded to make it to the National Meet.
In those events that are now finished at the first round meet in Greensboro, NC (East Regional) there were 45 National qualifiers that were not in the descending order's top 12. 9 events were completed on Thursday. Meaning 108 qualifiers. 45 out of 108 is 41.66%. That means that 41% of the spots in the top 12 were taken by athletes that weren't seeded in the top 12. While, a majority of the spots were taken by those seeded in the top 12. I hardly think that 63 out of 108 is considered most of the spots.