Table 1.
Average number of authors by period
| Period | Average number of authors | Share (%) of single-author publications |
|---|---|---|
| 2011–2020 | 2.35 | 20.43 |
| 2001–2010 | 2.01 | 31.46 |
| 1991–2000 | 1.90 | 25.00 |
| 1961–1990 | 1.71 | 41.18 |
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