condition mean min max ZT0-3 70.4329 69.23 71.6358 ZT4-7 80.16284999999999 80.16284999999999 80.16284999999999 ZT8-11 59.221199999999996 59.221199999999996 59.221199999999996 ZT12-15 0 0 0 ZT16-19 59.42715 59.42715 59.42715 ZT20-23 61.44205 61.44205 61.44205