condition mean min max ZT0-3 10.402764999999999 10.33628 10.469249999999999 ZT4-7 10.464355000000001 10.464355000000001 10.464355000000001 ZT8-11 23.48485 23.48485 23.48485 ZT12-15 0 0 0 ZT16-19 30.043950000000002 30.043950000000002 30.043950000000002 ZT20-23 20.885150000000003 20.885150000000003 20.885150000000003