condition mean min max ZT0-3 325.1 325.1 325.1 ZT4-7 210.4 210.4 210.4 ZT8-11 190.2 190.2 190.2 ZT12-15 208.95 208.95 208.95 ZT16-19 314.2 314.2 314.2 ZT20-23 375.15 375.15 375.15