condition mean min max 4 h after light 157.6 157.6 157.6 8 h after light 154.3 100.4 208.2 12 h after light 160.39999999999998 147.7 173.1 4 h after dark 182.55 162.8 202.3 8 h after dark 248.75 248.1 249.4 12 h after dark 207.25 167.6 246.9