condition mean min max ZT0-3 951.75 951.75 951.75 ZT4-7 1055.1 1055.1 1055.1 ZT8-11 971.05 971.05 971.05 ZT12-15 837.65 837.65 837.65 ZT16-19 903.4 903.4 903.4 ZT20-23 890.0999999999999 890.0999999999999 890.0999999999999