| Views | |
| PER: 2011 Volume 14 No 5 | 137 |
| November 2012 | December 2012 | January 2013 | March 2013 | April 2013 | May 2013 | |
| PER: 2011 Volume 14 No 5 | 18 | 14 | 20 | 9 | 10 | 11 |
| Views | |
| United States of America | 41 |
| South Africa | 32 |
| China | 28 |
| Germany | 8 |
| Russian Federation | 8 |
| Canada | 7 |
| Japan | 4 |
| Ukraine | 3 |
| Czech Republic | 1 |
| United Kingdom | 1 |
| Views | |
| Potchefstroom | 26 |
| Beijing | 13 |
| Redwood City | 10 |
| Toronto | 7 |
| Seattle | 6 |
| Sayreville | 5 |
| La Jolla | 3 |
| Cape Town | 2 |
| Clarks Summit | 1 |
| Dallas | 1 |