The US uninsured rate is expected to rise significantly in the coming years. | Getty Images/Collection Mix: Sub One of the clearest success stories in US healthcare over the past 20 years has been the dramatic decline in the number of Americans without health insurance. In 2010, the year the Affordable Care Act was enacted, 16 percent of the population lacked coverage. By 2025, according to estimates from the US government, that figure was cut nearly in half, to 8.3 percent. The increase in co