condition mean min max ZT0-3 451.4 451.4 451.4 ZT4-7 480.1 480.1 480.1 ZT8-11 422.7 422.7 422.7 ZT12-15 460.35 460.35 460.35 ZT16-19 582.05 582.05 582.05 ZT20-23 439.54999999999995 439.54999999999995 439.54999999999995