condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 10 h after light 0.04681 0.0 0.28086 14 h after light 0.056471 0.0 0.338826 18 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0