condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.012518 0.0 0.025036 12 h after light 0.0 0.0 0.0 4 h after dark 0.04019855 0.0399101 0.040487 8 h after dark 0.005 0.0 0.01 12 h after dark 0.036267850000000004 0.0331557 0.03938