condition mean min max ZT0-3 0.07497183333333333 0.0 0.2249155 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.1258775 0.0 0.251755 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0