condition mean min max 0 h after light 8.864765 7.10233 10.6272 2 h after light 13.487 11.8585 15.1155 4 h after light 30.3916 29.635 31.1482 8 h after light 51.58955 47.8027 55.3764 12 h after light 45.57145 45.4188 45.7241 2 h after dark 33.0105 32.4302 33.5908 4 h after dark 16.7471 15.7245 17.7697 8 h after dark 14.5439 14.1014 14.9864 12 h after dark 10.252195 9.54419 10.9602