condition mean min max ZT0-3 106.00580000000001 96.3159 111.3615 ZT4-7 63.6797 63.6797 63.6797 ZT8-11 35.2881 35.2881 35.2881 ZT12-15 31.571749999999998 31.286299999999997 31.8572 ZT16-19 35.8207 35.8207 35.8207 ZT20-23 64.82375 64.82375 64.82375