condition mean min max ZT0-3 1033.95 1033.95 1033.95 ZT4-7 1129.1 1129.1 1129.1 ZT8-11 1142.95 1142.95 1142.95 ZT12-15 1309.0 1309.0 1309.0 ZT16-19 1535.5500000000002 1535.5500000000002 1535.5500000000002 ZT20-23 1288.05 1288.05 1288.05