condition mean min max ZT0-3 1324.7 1324.7 1324.7 ZT4-7 789.2 789.2 789.2 ZT8-11 672.05 672.05 672.05 ZT12-15 708.45 708.45 708.45 ZT16-19 813.45 813.45 813.45 ZT20-23 1391.0 1391.0 1391.0