condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.112083 0.112083 0.112083 ZT12-15 0.5189295 0.38135399999999997 0.656505 ZT16-19 0.1086695 0.1086695 0.1086695 ZT20-23 0.0 0.0 0.0