condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.02239365 0.02239365 0.02239365 ZT16-19 0.07857555 0.07857555 0.07857555 ZT20-23 0.00980865 0.00980865 0.00980865