condition mean min max ZT0-3 379.05 379.05 379.05 ZT4-7 259.4 259.4 259.4 ZT8-11 302.9 302.9 302.9 ZT12-15 275.15 275.15 275.15 ZT16-19 256.9 256.9 256.9 ZT20-23 331.04999999999995 331.04999999999995 331.04999999999995