condition mean min max 0 h after light 2.03981 1.92144 2.15818 4 h after light 1.9558650000000002 1.78767 2.12406 8 h after light 3.955305 3.8816 4.02901 4 h after dark 4.22461 4.20083 4.24839 8 h after dark 3.02292 2.94923 3.09661 12 h after dark 1.9648050000000001 1.86071 2.0689