condition mean min max 4 h after light 10.593733 9.565265 11.622201 8 h after light 9.6436185 9.368883 9.918354 12 h after light 11.329885 11.037569 11.622201 4 h after dark 10.254261 9.433671 11.074851 8 h after dark 9.77731 9.413355 10.141265 12 h after dark 10.563148 10.563148 10.563148