condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.048400617750000006 0.0 0.09680123550000001 ZT16-19 0.04184713925 0.0 0.0836942785 ZT20-23 0.0 0.0 0.0