condition mean min max 0 h after light 1.025752 0.805074 1.24643 4 h after light 0.876782 0.671164 1.0824 8 h after light 1.58086 1.44818 1.71354 4 h after dark 1.1888684999999999 0.934447 1.44329 8 h after dark 1.1215199999999999 1.01765 1.22539 12 h after dark 1.1575 1.07247 1.24253