condition mean min max 0 h after light 1.0767885 0.991597 1.16198 4 h after light 1.117406 0.877012 1.3578 8 h after light 1.3207650000000002 1.06444 1.57709 4 h after dark 1.8224900000000002 1.09894 2.54604 8 h after dark 1.765955 1.66696 1.86495 12 h after dark 0.9959455 0.730631 1.26126