condition mean min max ZT0-3 0.0017113389999999999 0.0 0.0034226779999999997 ZT4-7 0.009993270499999998 0.0097034725 0.010283068499999999 ZT8-11 0.01309769525 0.0 0.0261953905 ZT12-15 0.0108562405 0.004860278 0.016852203 ZT16-19 0.0 0.0 0.0 ZT20-23 0.007211757 0.007075380500000001 0.0073481334999999995