Now that 2012 has come to a close, the Dogs of the Dow are set for 2013. Two companies are new additions this year and they are Hewlett-Packard (HPQ) and McDonald's (MCD). The two companies falling out of the top ten yielding stocks are Procter & Gamble (PG) and Mondelez (MDLZ).Full ViewThe Dow Dogs of 2012 underperformed the Dow Jones Index by 1.6 percentage points. The Dow returned 7.3% versus the 2012 Dow Dogs return of 5.7%. This is far different than the 2011 return when the Dogs of the Dow returned 16.3% versus the Dow's return of 8.4%.