condition mean min max ZT0-3 64.015755 64.015755 64.015755 ZT4-7 95.8965905 95.8965905 95.8965905 ZT8-11 77.817613 77.817613 77.817613 ZT12-15 82.099052 82.099052 82.099052 ZT16-19 107.461968 107.461968 107.461968 ZT20-23 91.24823599999999 91.24823599999999 91.24823599999999