condition mean min max 4 h after light 7.947971000000001 7.820455 8.075487 8 h after light 8.885114999999999 8.337775 9.432455 12 h after light 9.434833000000001 8.729354 10.140312 4 h after dark 28.1487015 23.184927 33.112476 8 h after dark 32.145987500000004 12.565639 51.726336 12 h after dark 7.357398 7.357398 7.357398