condition mean min max ZT0-3 0.03322 0.01381795 0.052622050000000004 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0 0 0 ZT16-19 0.1035821 0.1035821 0.1035821 ZT20-23 0.204404 0.204404 0.204404