condition mean min max ZT0-3 1201.9 1201.9 1201.9 ZT4-7 941.9 941.9 941.9 ZT8-11 1063.15 1063.15 1063.15 ZT12-15 1059.8 1059.8 1059.8 ZT16-19 1125.3000000000002 1125.3000000000002 1125.3000000000002 ZT20-23 1180.85 1180.85 1180.85