condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.3105914505 0.1149925155 0.5061903855 ZT12-15 0.24094027025 0.167906257 0.3139742835 ZT16-19 0.9588838120000001 0.6561758825 1.2615917415000002 ZT20-23 0.6071255915 0.49364264 0.720608543