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 0.0215004 0.0 0.0860016 3 h after dark 0.139172 0.0 0.417516 6 h after dark 0.06374433333333333 0.0 0.191233 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0