condition mean min max ZT0-3 0.022193749999999998 0.022193749999999998 0.022193749999999998 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0571965 0.0571965 0.0571965 ZT12-15 0.01397095 0.01397095 0.01397095 ZT16-19 0.04902165 0.04902165 0.04902165 ZT20-23 0.0304893 0.0304893 0.0304893