condition mean min max 4 h after light 182.2 182.2 182.2 8 h after light 164.0 151.8 176.2 12 h after light 140.39999999999998 138.6 142.2 4 h after dark 134.85000000000002 132.4 137.3 8 h after dark 167.25 166.9 167.6 12 h after dark 174.55 160.8 188.3