condition mean min max 4 h after light 116.26650000000001 115.877 116.656 8 h after light 112.8715 111.776 113.967 12 h after light 87.8857 86.1993 89.5721 4 h after dark 115.2635 109.229 121.298 8 h after dark 102.435 101.001 103.869 12 h after dark 112.155 111.036 113.274