condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.02294705 0.0 0.0458941 12 h after light 0.02802555 0.0 0.0560511 4 h after dark 0.0244957 0.0 0.0489914 8 h after dark 0.0368264 0.0 0.0736528 12 h after dark 0.0203501 0.0 0.0407002