condition mean min max ZT0-3 195.6415 190.7095 200.57350000000002 ZT4-7 108.69 108.69 108.69 ZT8-11 43.3996 43.3996 43.3996 ZT12-15 0 0 0 ZT16-19 105.56685 105.56685 105.56685 ZT20-23 189.7625 189.7625 189.7625