condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.02316835 0.02316835 0.02316835 ZT12-15 0 0 0 ZT16-19 0.02299925 0.02299925 0.02299925 ZT20-23 0.023258 0.023258 0.023258