condition mean min max ZT0-3 0.01474675 0.0 0.0294935 ZT4-7 0.029079 0.029079 0.029079 ZT8-11 0.0 0.0 0.0 ZT12-15 0 0 0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.058339699999999994 0.058339699999999994 0.058339699999999994