condition mean min max 0 h after light 78.707 66.9781 90.4359 4 h after light 33.3545 20.7704 45.9386 8 h after light 16.09565 14.4053 17.786 4 h after dark 43.025000000000006 22.8804 63.1696 8 h after dark 31.669400000000003 28.9222 34.4166 12 h after dark 77.8874 56.8967 98.8781