condition mean min max 4 h after light 0.5164025 0.153026 0.879779 8 h after light 0.620254 0.334234 0.906274 12 h after light 1.123733 0.866386 1.38108 4 h after dark 0.65061 0.589636 0.688045 8 h after dark 2.35678 1.3605 2.85675 12 h after dark 0.519877 0.0 1.13976