condition mean min max ZT0-3 27.480400000000003 27.480400000000003 27.480400000000003 ZT4-7 11.54835 11.54835 11.54835 ZT8-11 27.0153 27.0153 27.0153 ZT12-15 57.775800000000004 57.775800000000004 57.775800000000004 ZT16-19 62.8654 62.8654 62.8654 ZT20-23 48.92145 48.92145 48.92145