condition mean min max ZT0-3 241.44375000000002 241.0885 241.799 ZT4-7 140.322 140.322 140.322 ZT8-11 50.75385 50.75385 50.75385 ZT12-15 0 0 0 ZT16-19 72.62425 72.62425 72.62425 ZT20-23 152.46949999999998 152.46949999999998 152.46949999999998