condition mean min max ZT0-3 0.021151950000000003 0.021151950000000003 0.021151950000000003 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.03097705 0.03097705 0.03097705 ZT16-19 0.04722525 0.04722525 0.04722525 ZT20-23 0.029058100000000003 0.029058100000000003 0.029058100000000003