condition mean min max 0 h after light 14.997 14.073 15.921 4 h after light 16.2728 16.0051 16.5405 8 h after light 28.4715 26.0578 30.8852 4 h after dark 32.094049999999996 27.7029 36.4852 8 h after dark 31.018500000000003 28.5243 33.5127 12 h after dark 20.1417 15.2761 25.0073