condition mean min max ZT0-3 24.0407 24.0407 24.0407 ZT4-7 88.77980000000001 88.77980000000001 88.77980000000001 ZT8-11 119.94514999999998 119.94514999999998 119.94514999999998 ZT12-15 132.386 132.386 132.386 ZT16-19 54.015600000000006 54.015600000000006 54.015600000000006 ZT20-23 39.08205 39.08205 39.08205