| Views | |
| Trade and the Number of OCA's in the World | 164 |
| May 2012 | June 2012 | July 2012 | August 2012 | September 2012 | October 2012 | November 2012 | December 2012 | January 2013 | February 2013 | April 2013 | |
| Trade and the Number of OCA's in the World | 3 | 4 | 6 | 4 | 4 | 3 | 2 | 7 | 8 | 3 | 1 |
| Views | |
| Italy | 114 |
| China | 27 |
| United States of America | 9 |
| Russian Federation | 8 |
| Ukraine | 1 |
| Views | |
| Rome | 113 |
| Beijing | 21 |
| Moscow | 8 |
| Romeo | 7 |
| Florence | 1 |
| Kiev | 1 |
| Seattle | 1 |