condition mean min max 4 h after light 16.120066666666666 9.9729 23.7377 8 h after light 8.413976666666667 2.19483 14.7891 12 h after light 6.68779 3.72253 10.1868 4 h after dark 9.867560000000001 5.58108 13.518 8 h after dark 12.181659999999999 9.57188 13.8043 12 h after dark 8.814046666666666 7.50503 10.833