condition mean min max 4 h after light 0.7615665 0.748323 0.77481 8 h after light 2.68642 2.47788 2.89496 12 h after light 11.9704 11.3003 12.6405 4 h after dark 8.807485 7.7665 9.84847 8 h after dark 5.4482800000000005 5.19956 5.697 12 h after dark 2.659395 2.44339 2.8754