condition mean min max 4 h after light 5.9e-07 0.0 1.18e-06 8 h after light 0.0 0.0 0.0 12 h after light 0.13493149999999998 0.057311 0.212552 4 h after dark 0.1301737 0.0 0.30312 8 h after dark 0.184043 0.118651 0.22586 12 h after dark 0.086856 0.0 0.138509