| Variables (n = 2223) | N | % |
| Document type | ||
| Article | 1222 | 55.0 |
| Book | 666 | 30.0 |
| Thesis | 44 | 1.9 |
| Dissertation | 46 | 2.1 |
| Others | 245 | 11.0 |
| Temporality (years) | ||
| 0 - 4 | 600 | 27.0 |
| 5 - 9 | 934 | 42.0 |
| 10 - 14 | 400 | 18.0 |
| 15 - 19 | 155 | 7.0 |
| 20 - 24 | 66 | 3.0 |
| 25 - 29 | 24 | 1.1 |
| 30 - 34 | 36 | 1.6 |
| >35 | 7 | 0.3 |
| Geographic origin | ||
| Brazil | 1,734 | 78.0 |
| United States | 274 | 12.3 |
| Great Britain | 100 | 4.5 |
| Switzerland | 18 | 0.8 |
| Portugal | 17 | 0.7 |
| Spain | 17 | 0.7 |
| Other countries | 63 | 3 |
| Language | ||
| Portuguese | 1723 | 77.5 |
| English | 455 | 20.4 |
| Spanish | 43 | 2.0 |
| Other languages | 2 | 0.1 |