condition mean min max 1 h after light 4.5075753775 4.36680654 4.648344215 3 h after light 5.923802561666666 4.854999456 6.713580909 5 h after light 7.867427763666667 6.908517081 8.582583847999999 7 h after light 7.439980288 6.57507972 8.421967523 9 h after light 6.181599046 5.044400649 7.86948243 11 h after light 6.960304111666667 6.733880699 7.130762888 1 h after dark 8.699895465666666 7.5062496229999995 10.45236834 3 h after dark 8.892949997999999 8.134683239 9.978217624 5 h after dark 8.596606830333334 8.321569432999999 9.127827077000001 7 h after dark 8.906960796666667 8.635867992 9.228873024 9 h after dark 7.542783447666666 6.912227558 8.507081772000001 11 h after dark 8.419554553333333 7.651268135 8.928970043