condition mean min max ZT0-3 42.022450000000006 37.5168 46.5281 ZT4-7 24.24105 24.24105 24.24105 ZT8-11 48.89105 48.89105 48.89105 ZT12-15 0 0 0 ZT16-19 43.73125 43.73125 43.73125 ZT20-23 33.832 33.832 33.832