condition mean min max ZT0-3 273.45000000000005 273.45000000000005 273.45000000000005 ZT4-7 235.5 235.5 235.5 ZT8-11 366.95000000000005 366.95000000000005 366.95000000000005 ZT12-15 268.8 268.8 268.8 ZT16-19 233.8 233.8 233.8 ZT20-23 286.6 286.6 286.6