condition mean min max ZT0-3 117.78812500000001 114.84725 120.72900000000001 ZT4-7 83.2075 83.2075 83.2075 ZT8-11 56.62985 56.62985 56.62985 ZT12-15 0 0 0 ZT16-19 81.41065 81.41065 81.41065 ZT20-23 97.37385 97.37385 97.37385