condition mean min max ZT0-3 10.6112125 8.715275 12.50715 ZT4-7 9.764389999999999 9.764389999999999 9.764389999999999 ZT8-11 10.584610000000001 10.584610000000001 10.584610000000001 ZT12-15 0 0 0 ZT16-19 14.12355 14.12355 14.12355 ZT20-23 13.28705 13.28705 13.28705