condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.00848225 0.0 0.0169645 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0069054 0.0 0.0207162 12 h after dark 0.0 0.0 0.0