condition mean min max ZT0-3 403.009 403.009 403.009 ZT4-7 310.28999999999996 310.28999999999996 310.28999999999996 ZT8-11 343.822 343.822 343.822 ZT12-15 334.8405 334.8405 334.8405 ZT16-19 576.5445 576.5445 576.5445 ZT20-23 483.7265 483.7265 483.7265