condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0190935 0.0 0.0572805 9 h after light 0.0 0.0 0.0 12 h after light 0.013137225 0.0 0.0525489 3 h after dark 0.0 0.0 0.0 6 h after dark 0.09959666666666667 0.0 0.168914 9 h after dark 0.11488433333333332 0.0 0.296774 12 h after dark 0.1864846 0.0502552 0.322714