condition mean min max ZT0-3 141.6788 80.3544 183.87650000000002 ZT4-7 53.287949999999995 53.287949999999995 53.287949999999995 ZT8-11 45.18805 45.18805 45.18805 ZT12-15 70.8098 70.04974999999999 71.56985 ZT16-19 78.8292 78.8292 78.8292 ZT20-23 136.32510000000002 136.32510000000002 136.32510000000002