condition mean min max ZT0-3 0.10533153975000001 0.104492656 0.1061704235 ZT4-7 0.23949880525 0.20367719850000002 0.275320412 ZT8-11 1.2285161315 0.575595262 1.8814370009999999 ZT12-15 15.54253598975 12.8087214545 18.276350524999998 ZT16-19 11.64552573625 10.05171116 13.239340312500001 ZT20-23 8.1002186805 7.409751076499999 8.7906862845