condition mean min max ZT0-3 3035.8500000000004 3035.8500000000004 3035.8500000000004 ZT4-7 3061.7 3061.7 3061.7 ZT8-11 2888.05 2888.05 2888.05 ZT12-15 2736.2 2736.2 2736.2 ZT16-19 3021.3500000000004 3021.3500000000004 3021.3500000000004 ZT20-23 3123.8999999999996 3123.8999999999996 3123.8999999999996