condition mean min max 0 h after light 51.8324 51.2128 52.452 4 h after light 65.4819 62.355 68.6088 8 h after light 81.22265 76.8152 85.6301 4 h after dark 106.7096 97.3442 116.075 8 h after dark 87.78835000000001 85.699 89.8777 12 h after dark 59.54105 48.3426 70.7395