Reusable chart
A small contributor cohort produces most commits
The top 1% of human contributors produce 60.9% of commits, while the bottom 90% produce 9.3%.
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chart
A small contributor cohort produces most commits
chart-contributor-concentration
Commit activity is concentrated in a small contributor cohort.
Source: FOSS Data — https://www.fossdata.org
Detailed description and evidence notes
This chart compares contributor-cohort size with the share of attributed commits, preserving the source arithmetic and its long-tail caveat.
- Research edition
- 2026
- Measurement
- Measured 25 June 2026
- Publication
- Published 2 August 2026
- Calculation
- Next 9% and bottom 90% are arithmetic differences from the source's top-1% and top-10% totals.
- Methodology note
- Contributor cohorts are ranked by lifetime commits and compared with their share of attributed commits.