condition mean min max 0 h after light 6.243964999999999 4.16759 8.32034 4 h after light 2.119455 0.0 4.23891 8 h after light 8.2912 4.2348 12.3476 4 h after dark 8.19586 4.08582 12.3059 8 h after dark 20.5726 20.4863 20.6589 12 h after dark 2.032045 0.0 4.06409