condition mean min max 4 h after light 1.27933 1.04858 1.51008 8 h after light 4.157335 4.07404 4.24063 12 h after light 15.943349999999999 12.8999 18.9868 4 h after dark 7.962406666666666 7.27471 8.61458 8 h after dark 4.230246666666667 3.75267 4.70116 12 h after dark 2.26981 2.04477 2.44581