condition mean min max ZT0-3 0.01608145 0.01608145 0.01608145 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.04338015 0.04338015 0.04338015 ZT16-19 0.049129400000000004 0.049129400000000004 0.049129400000000004 ZT20-23 0.00816735 0.00816735 0.00816735