condition mean min max ZT0-3 93.996625 88.94635 99.0469 ZT4-7 78.50305 78.50305 78.50305 ZT8-11 197.272 197.272 197.272 ZT12-15 0 0 0 ZT16-19 238.252 238.252 238.252 ZT20-23 167.78699999999998 167.78699999999998 167.78699999999998