condition mean min max ZT0-3 0.3946085 0.3946085 0.3946085 ZT4-7 0.0 0.0 0.0 ZT8-11 0.444966 0.444966 0.444966 ZT12-15 0.72085 0.72085 0.72085 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0