condition mean min max ZT0-3 2500.15 2500.15 2500.15 ZT4-7 3124.5 3124.5 3124.5 ZT8-11 2979.15 2979.15 2979.15 ZT12-15 2912.8 2912.8 2912.8 ZT16-19 3053.05 3053.05 3053.05 ZT20-23 2721.75 2721.75 2721.75