condition mean min max ZT0-3 731.85 731.85 731.85 ZT4-7 1152.3 1152.3 1152.3 ZT8-11 1582.4 1582.4 1582.4 ZT12-15 1506.05 1506.05 1506.05 ZT16-19 1048.8 1048.8 1048.8 ZT20-23 905.9000000000001 905.9000000000001 905.9000000000001