condition mean min max 4 h after light 6.738003333333333 3.63524 9.86723 8 h after light 4.4937000000000005 1.35949 8.11025 12 h after light 6.179916666666666 3.60235 9.84761 4 h after dark 8.656936666666667 5.84373 11.0547 8 h after dark 7.57951 5.34056 9.73394 12 h after dark 7.9553400000000005 7.08646 9.56201