condition mean min max ZT0-3 61.732975 52.099900000000005 71.36605 ZT4-7 91.0368 91.0368 91.0368 ZT8-11 96.46324999999999 96.46324999999999 96.46324999999999 ZT12-15 0 0 0 ZT16-19 128.563 128.563 128.563 ZT20-23 95.2697 95.2697 95.2697