condition mean min max ZT0-3 22.8893 22.3795 23.3991 ZT4-7 13.721499999999999 13.721499999999999 13.721499999999999 ZT8-11 14.3402 14.3402 14.3402 ZT12-15 0 0 0 ZT16-19 26.90235 26.90235 26.90235 ZT20-23 29.672400000000003 29.672400000000003 29.672400000000003