condition mean min max 0 h after light 9.91355 9.2902 10.5369 2 h after light 6.6282700000000006 6.25277 7.00377 4 h after light 5.186965000000001 4.73911 5.63482 8 h after light 4.946490000000001 4.77268 5.1203 12 h after light 7.7402750000000005 7.28361 8.19694 2 h after dark 6.92076 6.14854 7.69298 4 h after dark 7.82619 7.42572 8.22666 8 h after dark 11.678799999999999 11.3622 11.9954 12 h after dark 10.73865 10.018 11.4593