condition mean min max ZT0-3 264.45 264.45 264.45 ZT4-7 321.4 321.4 321.4 ZT8-11 349.29999999999995 349.29999999999995 349.29999999999995 ZT12-15 593.3499999999999 593.3499999999999 593.3499999999999 ZT16-19 563.55 563.55 563.55 ZT20-23 343.0 343.0 343.0