condition mean min max ZT0-3 0.79988053525 0.6002766684999999 0.999484402 ZT4-7 0.12994299825 0.127127421 0.13275857549999998 ZT8-11 1.01553547475 0.139446583 1.8916243665 ZT12-15 4.253574592750001 3.6836521485000002 4.823497037 ZT16-19 3.0798124145 2.1634521304999996 3.9961726985000006 ZT20-23 1.96835879925 1.4126454270000002 2.5240721715