condition mean min max ZT0-3 190.25 190.25 190.25 ZT4-7 184.5 184.5 184.5 ZT8-11 162.85 162.85 162.85 ZT12-15 197.55 197.55 197.55 ZT16-19 270.5 270.5 270.5 ZT20-23 276.4 276.4 276.4