condition mean min max ZT0-3 37.221625 36.4822 37.96105 ZT4-7 71.57560000000001 71.57560000000001 71.57560000000001 ZT8-11 133.398 133.398 133.398 ZT12-15 0 0 0 ZT16-19 95.5976 95.5976 95.5976 ZT20-23 66.168 66.168 66.168