condition mean min max ZT0-3 282.2 282.2 282.2 ZT4-7 290.2 290.2 290.2 ZT8-11 305.20000000000005 305.20000000000005 305.20000000000005 ZT12-15 430.2 430.2 430.2 ZT16-19 380.65 380.65 380.65 ZT20-23 338.6 338.6 338.6