Bibliometric Indicators, By Field

The following dataset presents seven bibliometric indicators by fields of science for the 2009-2023 period. The dataset covers OECD member and accession countries, key partners (including Brazil, China, India, Indonesia and South Africa) and other selected non-OECD countries.

The indicators are:

1. Scientific publications, fractional counts.

2. The percentage of corresponding/leading author documents.

3. The percentage of scientific publications involving international collaboration.

4. The number of top 10% most cited scientific publications, fractional counts.

5. Percentage of scientific publications among the world's 10% top-cited publications. The world average is 10% for the period.

6. The normalised citation impact score is the ratio of actual versus expected publications, shown as a percentage. The world average is 100.

7. The specialisation index relative to world of scientific publications measures relative specialisation. The world average is 1.

For more information on the calculations see the dataset documentation.

Source: OECD calculations based on Scopus Custom Data, Elsevier, Version 1.2025; and Scimago Journal Rankings.