condition mean min max ZT0-3 0.0146802 0.0146802 0.0146802 ZT4-7 0.040704699999999996 0.040704699999999996 0.040704699999999996 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0179262 0.0179262 0.0179262 ZT20-23 0.02640995 0.02640995 0.02640995