condition mean min max ZT0-3 0.019185499999999998 0.019185499999999998 0.019185499999999998 ZT4-7 0.0 0.0 0.0 ZT8-11 0.00922825 0.00922825 0.00922825 ZT12-15 0.055688025 0.055688025 0.055688025 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0