condition mean min max ZT0-3 0.14916512325 0.0 0.2983302465 ZT4-7 1.05810601125 0.8893734499999999 1.2268385725000002 ZT8-11 8.4223428405 4.007404306 12.837281375 ZT12-15 17.830207672500002 16.538861230000002 19.121554115 ZT16-19 41.9875071875 35.880165225 48.09484915 ZT20-23 48.4233433025 44.282947535000005 52.56373907