condition mean min max ZT0-3 231.5355 228.6765 234.3945 ZT4-7 225.591 225.591 225.591 ZT8-11 264.0485 264.0485 264.0485 ZT12-15 0 0 0 ZT16-19 359.0415 359.0415 359.0415 ZT20-23 231.7215 231.7215 231.7215