condition mean min max ZT0-3 0.004613666666666666 0.0 0.009227333333333332 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0057921000000000005 0.0057921000000000005 0.0057921000000000005 ZT12-15 0.0 0.0 0.0 ZT16-19 0.013283999999999999 0.013283999999999999 0.013283999999999999 ZT20-23 0.0 0.0 0.0