condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.02594655 0.0221832 0.0297099 12 h after light 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 0.01642935 0.0 0.0328587