condition mean min max ZT0-3 0.30873710925 0.2345738685 0.38290035 ZT4-7 0.3373699375 0.2426542585 0.4320856165 ZT8-11 0.416567186 0.40440449199999995 0.42872988 ZT12-15 0.59849081575 0.474610014 0.7223716175 ZT16-19 0.82737673075 0.5714584535 1.083295008 ZT20-23 2.5572209929999996 1.9925004364999999 3.1219415495