condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.008246375 0.008246375 0.008246375 ZT16-19 0.0 0.0 0.0 ZT20-23 0.010612749999999999 0.010612749999999999 0.010612749999999999