Revenues & Sales - By Product Category
| 2015 | 2014 | 2013 | 2012 | 2011 | |
|---|---|---|---|---|---|
| US engagement | 56.2% | 56.3% | 56.9% | 56.6% | 53.5% |
| US non-engagement | 26.7% | 26.6% | 26.9% | 27.8% | 30.4% |
| International engagement | 13.7% | 13.7% | 13.1% | 12.5% | 12.9% |
| International non-engagement | 3.4% | 3.4% | 3.2% | 3.1% | 3.1% |