condition mean min max ZT0-3 0.5697213333333333 0.352438 0.9780795 ZT4-7 0.409933 0.409933 0.409933 ZT8-11 0.6372905 0.6372905 0.6372905 ZT12-15 0.4124865 0.0 0.824973 ZT16-19 0.3831465 0.3831465 0.3831465 ZT20-23 0.4599455 0.4599455 0.4599455