condition mean min max ZT0-3 0.14734301549999998 0.0 0.29468603099999996 ZT4-7 0.0 0.0 0.0 ZT8-11 0.13566031 0.0 0.27132062 ZT12-15 0.0 0.0 0.0 ZT16-19 0.030269258000000004 0.0 0.06053851600000001 ZT20-23 0.0 0.0 0.0