(Undated)  --  A new Gallup survey shows Oregon and Washington with among the nation's best rates of decrease in the number of uninsured residents as a result of the Affordable Care Act.  According to the Gallup Healthways Well-Being Index, Washington's rate of uninsured is ten-point-seven percent, compared to nearly 17 percent pre-Obamacare.  That's the nation's fourth-highest rate of decrease of uninsured residents.  The survey shows Oregon has the seventh-highest rate of decrease of those without health-care insurance, with 14 percent uninsured, compared to 19-point-four percent pre-Obamacare.