condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.02360306666666667 0.02360306666666667 0.02360306666666667 ZT8-11 0.01021475 0.01021475 0.01021475 ZT12-15 0.010674500000000002 0.010674500000000002 0.010674500000000002 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0