453,541,589,654 years
Over the last 40 years, the United States has experienced budget surpluses in only a few instances, primarily during the late 1990s and early 2000s. The most notable surpluses occurred from 1998 to 2001, with the federal budget achieving a surplus in each of those years. Overall, there have been a total of five years with budget surpluses since 1980.
Assuming the budget only covers one year, it's "last year's budget".
South Sudan was the last country to join the United Nations. It is the newest sovereign state in the world, and joined the organization in 2011.
The United Kingdom has always hosted the Commonwealth - both the Commonwealth Dominions/Realms, and the Commonwealth of Nations.
OPEC nations have increased the price of oil in the last few years, but this is a market that fluctuates daily. The price of crude oil in the United States has several other factors like supply and demand that determine price.
2002
New York September 2012
This years' sales plus last years' sales divided by 2
The last entrant to the UN was in 2006, so all of them - 192 members.
The United Nations estimates that the United States generates a total of 5,461,014 tonnes of pollution a year. There are approximately 10,957 days in 30 years. So, over 30 years, the United States has released approximately 59,836,330,398 tonnes of pollution. This accounts for 18.27% of the pollution in the world.
The United Nations authorized a U.S. led coalition to intervene in the Korean conflict in 1950. The troops were meant to aid South Korea against invading North Korea, who was backed by China. The war would last for three years.
4 years