condition mean min max 4 h after light 4263.7 4263.7 4263.7 8 h after light 4337.55 3997.8 4677.3 12 h after light 4206.25 4160.0 4252.5 4 h after dark 4646.45 4313.7 4979.2 8 h after dark 4699.55 3980.4 5418.7 12 h after dark 4364.1 4326.9 4401.3