condition mean min max ZT0-3 326.64300000000003 326.64300000000003 326.64300000000003 ZT4-7 339.911 339.911 339.911 ZT8-11 298.9375 298.9375 298.9375 ZT12-15 246.001 246.001 246.001 ZT16-19 354.5985 354.5985 354.5985 ZT20-23 305.8565 305.8565 305.8565