condition mean min max 0 h after light 3.22689 2.57875 3.87503 4 h after light 5.408475 4.57651 6.24044 8 h after light 3.334535 3.12531 3.54376 4 h after dark 3.77684 2.72261 4.83107 8 h after dark 3.602105 3.52158 3.68263 12 h after dark 4.255405 3.28349 5.22732