condition mean min max ZT0-3 1231.55 1231.55 1231.55 ZT4-7 981.3 981.3 981.3 ZT8-11 1093.2 1093.2 1093.2 ZT12-15 1758.0 1758.0 1758.0 ZT16-19 1732.65 1732.65 1732.65 ZT20-23 1482.0 1482.0 1482.0