condition mean min max 0 h after light 1.67644 1.45747 1.89541 2 h after light 1.4626885 0.949387 1.97599 4 h after light 0.609325 0.530838 0.687812 8 h after light 0.697498 0.559272 0.835724 12 h after light 2.543655 1.22378 3.86353 2 h after dark 1.2516265 0.836293 1.66696 4 h after dark 0.467737 0.260247 0.675227 8 h after dark 1.049667 0.881104 1.21823 12 h after dark 3.252 2.89035 3.61365