I think they probably mean it that way when they said:
3rd - 4th = 10k
5th - 8th = 5k
It's 10k for 3rd & 4th (so 20k in total) and 5k for 5th - 6th - 7th & 8th (so 20k in total). That's still doesn't make it a total of 80k but at least 85k is actually closer.
Edited by Tardet, 03 January 2019 - 08:18.