condition mean min max 3 h after light 0.481315 0.391047 0.570799 6 h after light 0.1081743 0.0323855 0.25795 9 h after light 0.303526 0.269376 0.342374 12 h after light 0.6473823333333333 0.596536 0.703428 3 h after dark 1.4537866666666666 1.31937 1.57529 6 h after dark 1.59425 1.20782 1.82284 9 h after dark 1.37783 1.17198 1.63351 12 h after dark 0.8836513333333333 0.623352 1.09971