condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.025265533333333336 0.0 0.0757966 12 h after light 0.02432643333333333 0.0 0.0729793 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0293453 0.0 0.0880359 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0