condition mean min max ZT0-3 107.55000000000001 107.55000000000001 107.55000000000001 ZT4-7 162.9 162.9 162.9 ZT8-11 167.89999999999998 167.89999999999998 167.89999999999998 ZT12-15 128.3 128.3 128.3 ZT16-19 139.8 139.8 139.8 ZT20-23 118.2 118.2 118.2