condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.254919 0.0 0.509838 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.2555745 0.0 0.511149 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0