condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.025167951749999997 0.0 0.050335903499999994 ZT8-11 0.0461379405 0.0185830445 0.0736928365 ZT12-15 0.00594779875 0.0 0.0118955975 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0290608065 0.0284460785 0.029675534500000003