condition mean min max 0 h after light 4.95331 4.67094 5.23568 4 h after light 4.21767 4.10913 4.32621 8 h after light 4.120325 3.8656 4.37505 4 h after dark 4.17922 3.65832 4.70012 8 h after dark 4.405895 4.2586 4.55319 12 h after dark 4.62262 4.19868 5.04656