Datasets:
| <table> | |
| <tr> | |
| <th></th> | |
| <th colspan="3">Year Ended December 31</th> | |
| </tr> | |
| <tr> | |
| <th></th> | |
| <th>2015</th> | |
| <th>2014</th> | |
| <th>2013</th> | |
| </tr> | |
| <tr> | |
| <td>Expected term (in years)</td> | |
| <td>5.16</td> | |
| <td>5.23</td> | |
| <td>5.27</td> | |
| </tr> | |
| <tr> | |
| <td>Expected volatility</td> | |
| <td>39%</td> | |
| <td>37%</td> | |
| <td>40%</td> | |
| </tr> | |
| <tr> | |
| <td>Expected dividend yield</td> | |
| <td>1.51 - 1.85%</td> | |
| <td>0.94 - 1.77%</td> | |
| <td>0.94 - 1.33%</td> | |
| </tr> | |
| <tr> | |
| <td>Risk-free interest rate</td> | |
| <td>1.43 - 1.72%</td> | |
| <td>1.57 - 1.86%</td> | |
| <td>0.77 - 1.73%</td> | |
| </tr> | |
| <tr> | |
| <td>Weighted average grant-date fair value per share</td> | |
| <td>$13.47</td> | |
| <td>$19.26</td> | |
| <td>$14.34</td> | |
| </tr> | |
| </table> |