condition mean min max ZT0-3 92.21793860166666 89.73241243999999 94.70346476333333 ZT4-7 111.93229996166667 100.97287722333334 122.8917227 ZT8-11 114.28577512333334 112.26207316666667 116.30947708 ZT12-15 105.82732474 102.21704137 109.43760811 ZT16-19 101.527011715 99.70331883 103.3507046 ZT20-23 98.00343540666665 92.14063171333332 103.8662391