condition mean min max 4 h after light 13.062650000000001 12.3726 13.7527 8 h after light 17.259900000000002 15.8855 18.6343 12 h after light 56.5405 53.7177 59.3633 4 h after dark 78.52279999999999 77.5372 79.5084 8 h after dark 53.58045 52.0123 55.1486 12 h after dark 26.56615 24.7139 28.4184