condition mean min max ZT0-3 0.026047333333333336 0.0 0.078142 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.15672875 0.0 0.3134575 ZT16-19 0.075926 0.075926 0.075926 ZT20-23 0.0 0.0 0.0