condition mean min max ZT0-3 0.07307040000000001 0.07307040000000001 0.07307040000000001 ZT4-7 4.031625 4.031625 4.031625 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0809897 0.0809897 0.0809897 ZT20-23 0.1003826 0.1003826 0.1003826