condition mean min max ZT0-3 0.008842866833333332 0.0 0.017685733666666665 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0377608995 0.0 0.075521799 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0