condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.13435350000000001 0.13435350000000001 0.13435350000000001 ZT8-11 0.0 0.0 0.0 ZT12-15 0.07220850000000001 0.0 0.14441700000000002 ZT16-19 0.3283185 0.3283185 0.3283185 ZT20-23 0.075698 0.075698 0.075698