condition mean min max ZT0-3 0.00958555 0.00958555 0.00958555 ZT4-7 0.01333245 0.01333245 0.01333245 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0350347 0.0350347 0.0350347 ZT16-19 0.0707187 0.0707187 0.0707187 ZT20-23 0.0 0.0 0.0