condition mean min max ZT0-3 193.05 193.05 193.05 ZT4-7 174.2 174.2 174.2 ZT8-11 159.35 159.35 159.35 ZT12-15 175.25 175.25 175.25 ZT16-19 199.1 199.1 199.1 ZT20-23 162.2 162.2 162.2