condition mean min max 2 h after light 48.769549999999995 42.5442 53.7251 6 h after light 36.98525 31.0672 45.4668 10 h after light 30.082216666666667 11.9342 55.3649 14 h after light 24.863216666666666 16.3085 34.6664 18 h after light 28.111516666666667 21.2619 42.8269 2 h after dark 15.25016 8.67986 27.6025