condition mean min max ZT0-3 1.194885 0.0 2.418095 ZT4-7 1.14147 1.14147 1.14147 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 1.11923 1.11923 1.11923 ZT20-23 1.2631 1.2631 1.2631