rate of 0.0 percent in real gross domestic product during 2 or more consecutive quarters or the unemployment rate was more than 7 percent during 2 or more consecutive months. 5. Congress shall enforce and implement this article by appropriate legislation, which may rely on estimates of outlays and receipts. 6. Except as provided in the second and third clauses, total receipts shall include all receipts of the United States Government other than those derived from borrowing, and total outlays shall include all outlays of the United States Government other than those for repayment of debt principal. For each fiscal year, the receipts (including attributable interest) and outlays of the Federal Old-Age and Survivors Insurance Trust Fund, the Federal Medicare Hospital Insurance Trust Fund, the Federal Disability Insurance Trust Fund, or any fund that is a successor to any such fund, shall not be considered to be receipts or outlays for purposes of this article. For any fiscal year, outlays relating to a natural disaster shall not be considered to be outlays for purposes of this article if the law making the amounts available explicitly exempts the outlays from this article and is agreed to by a majority of the whole number of each House. 7. No court of the United States or of any State shall enforce this article by ordering any reduction in Social Security or Medicare payments authorized by law, including any amounts paid from the Federal Old-Age and Survivors Insurance Trust Fund, the Federal Medicare Hospital Insurance Trust Fund, the Federal Disability Insurance Trust Fund, or any fund that is a successor to any such fund, unless the receipts (including attributable interest) and other amounts available for that fund for the applicable fiscal year are not sufficient to cover the outlays that would otherwise occur during that fiscal year if the fund were fully solvent. 8. This article shall take effect beginning with the fifth fiscal year beginning after its ratification. .