condition mean min max ZT0-3 0.03799216666666667 0.0 0.1139765 ZT4-7 0.0542455 0.0542455 0.0542455 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0