condition mean min max ZT0-3 0.1824233765 0.12700304199999998 0.237843711 ZT4-7 0.15005748725 0.12133817000000001 0.1787768045 ZT8-11 0.0977991145 0.073551198 0.122047031 ZT12-15 0.07585597825000001 0.023441746 0.1282702105 ZT16-19 0.02288211 0.022040945 0.023723275000000002 ZT20-23 0.05697026749999999 0.049637469999999996 0.06430306499999999