condition mean min max ZT0-3 1722.25 1722.25 1722.25 ZT4-7 1278.2 1278.2 1278.2 ZT8-11 1313.7 1313.7 1313.7 ZT12-15 1982.55 1982.55 1982.55 ZT16-19 2325.75 2325.75 2325.75 ZT20-23 2050.05 2050.05 2050.05