condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.013217903999999999 0.0 0.026435807999999998 ZT8-11 0.0 0.0 0.0 ZT12-15 0.00488196625 0.0 0.0097639325 ZT16-19 0.025800394 0.0 0.051600788 ZT20-23 0.0 0.0 0.0