| UPF.EDU n.4 | 13 |
| 11 / 2012 | 12 / 2012 | 01 / 2013 | 02 / 2013 | 03 / 2013 | 04 / 2013 | 05 / 2013 | |
| UPF.EDU n.4 | 2 | 0 | 1 | 3 | 0 | 1 | 2 |
| quatre.pdf | 15 |
| 1 | Spain | 6 |
| 2 | United States of America | 5 |
| 3 | China | 1 |
| 4 | Germany | 1 |
| 1 | Barcelona | 6 |
| 2 | Redwood City | 2 |
| 3 | Laurel | 1 |
| 4 | Mannheim | 1 |
| 5 | Santa Clara | 1 |
| 6 | Sayreville | 1 |
| 7 | Tianjin | 1 |