condition mean min max ZT0-3 52.15518 52.15518 52.15518 ZT4-7 182.4989 182.4989 182.4989 ZT8-11 96.10856 96.10856 96.10856 ZT12-15 125.54129999999999 125.54129999999999 125.54129999999999 ZT16-19 158.81516666666667 158.81516666666667 158.81516666666667 ZT20-23 109.00871000000001 109.00871000000001 109.00871000000001