condition mean min max ZT0-3 727.05 727.05 727.05 ZT4-7 286.6 286.6 286.6 ZT8-11 290.6 290.6 290.6 ZT12-15 422.3 422.3 422.3 ZT16-19 679.75 679.75 679.75 ZT20-23 715.25 715.25 715.25