condition mean min max 0 h after light 87.1762 84.9802 89.3722 4 h after light 32.02655 30.4509 33.6022 8 h after light 19.762999999999998 17.8975 21.6285 4 h after dark 38.9401 33.4851 44.3951 8 h after dark 42.5656 39.3508 45.7804 12 h after dark 79.2909 58.5258 100.056