NATO defense spending is pretty much the same in 2016 as it was in 2015. This is down form the 2009-2012 level, which was about 10% higher.
Most members are spending 0.9 to 1.2% of GDP on defense.
Estonia, Greece, Poland, and the UK spend from 2.0% to 2.38% of GDP.
The USA spends 3.61% of GDP in 2016 which is down from 5.29% of GDP in 2009.