condition mean min max 4 h after light 168.4 168.4 168.4 8 h after light 167.0 137.4 196.6 12 h after light 114.35000000000001 75.9 152.8 4 h after dark 72.05 44.1 100.0 8 h after dark 54.2 15.2 93.2 12 h after dark 162.75 92.5 233.0