condition mean min max ZT0-3 13.34815 13.266 13.430299999999999 ZT4-7 10.51425 10.51425 10.51425 ZT8-11 9.565315 9.565315 9.565315 ZT12-15 0 0 0 ZT16-19 12.1345 12.1345 12.1345 ZT20-23 13.550450000000001 13.550450000000001 13.550450000000001