condition mean min max ZT0-3 0.060528765250000005 0.0 0.12105753050000001 ZT4-7 0.6575903985 0.0901442685 1.2250365285 ZT8-11 4.43338582725 2.483860178 6.3829114765 ZT12-15 5.5654911492500005 4.750573526499999 6.380408772000001 ZT16-19 2.7899993204999998 2.517357702 3.062640939 ZT20-23 2.03786945775 1.8222809105 2.2534580049999997