condition mean min max ZT0-3 0.08071210000000001 0.0676574 0.1049149 ZT4-7 0.0 0.0 0.0 ZT8-11 0.1664555 0.1664555 0.1664555 ZT12-15 0.01663155 0.0 0.0332631 ZT16-19 0.0310536 0.0310536 0.0310536 ZT20-23 0.03504545 0.03504545 0.03504545