10  While national saving in the advanced economies has broadly recovered since the crisis, the weakness in investment has been striking. After being relatively stable as a share of GDP through the 1990s and early 2000s, the investment ratio tumbled in the GFC and has risen only marginally since (figure 3).
The US investment ratio has recovered only modestly despite low financing costs, and as at 2016 remains 1.4 percentage points lower than its precrisis average level between 1990 and 2005.