condition mean min max 4 h after light 61.8238 56.9624 66.6852 8 h after light 30.462600000000002 29.9601 30.9651 12 h after light 21.6435 21.1682 22.1188 4 h after dark 25.741 24.7059 27.3578 8 h after dark 42.0794 38.0776 46.5725 12 h after dark 53.6997 51.6645 54.8751