past). (@E) www.kpcb.com USA Inc. | Income Statement Drilldown 154 HOUSE_OVERSIGHT_020918 Debt Level: Why Will It Continue to Rise? Answer Part 1: Notional Social Security “Trust Fund” Surpluses Likely Turning Into Deficits Owing to Aging Population Social Security Cumulative Real Operating Surpluses / Deficits, 1982-2037E Cumula