condition mean min max ZT0-3 9222.650000000001 9222.650000000001 9222.650000000001 ZT4-7 11606.7 11606.7 11606.7 ZT8-11 13146.1 13146.1 13146.1 ZT12-15 11579.55 11579.55 11579.55 ZT16-19 11910.95 11910.95 11910.95 ZT20-23 10577.4 10577.4 10577.4