This is on me using Google, but the international nautical flags say the letters are RI_UK. The space for number 3 meaning there was no flag of that design that represents a letter. Unfortunately, I don't think it means anything. Kind of a missed opportunity.
Federal spending on health care in 2015. The Congressional Budget Office and the Office of Management and Budget estimate that the federal government will spend more than $980 billion on health care in fiscal year 2015 (see table 1).
In 2007, the last year for which fairly precise estimates in American health spending are available, we spent $2.24 trillion on health care in this country. It amounted to 16.2 percent of our 2007 gross domestic product of $13.8 trillion and to $7,421 per person living within our borders.