How much is a Second Class stamp? silagra 50 dadha pharma Ezekiel Emanuel, the keynote speaker at the Cancer Policy Institute launch, said $2.87 trillion was spent on health care in the United States, including $979 billion in federal spending, in 2012. To put this in perspective, if you compare that number to overall gross domestic products of other countries, the U.S. health care system is the fifth-largest economy in the world, he said.