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 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.05893383333333334 0.0364106 0.0958104 6 h after dark 0.015304233333333334 0.0 0.0459127 9 h after dark 0.024475733333333333 0.0 0.0734272 12 h after dark 0.0 0.0 0.0