condition mean min max 4 h after light 197.1 197.1 197.1 8 h after light 162.39999999999998 139.2 185.6 12 h after light 155.95 152.5 159.4 4 h after dark 122.44999999999999 111.2 133.7 8 h after dark 105.4 99.7 111.1 12 h after dark 152.8 130.0 175.6