condition mean min max ZT0-3 0.29048850000000004 0.0 0.5016970000000001 ZT4-7 0.0 0.0 0.0 ZT8-11 0.22390375 0.22390375 0.22390375 ZT12-15 0.37137725 0.1453515 0.597403 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0