condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.15185711575 0.0 0.3037142315 ZT12-15 0.590602212 0.3690255515 0.8121788725 ZT16-19 0.183944383 0.085221279 0.282667487 ZT20-23 0.065428195 0.04822144 0.08263495