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Sunspot Number vs US Federal Debt Outstanding
Sunspot Number and US Federal Debt Outstanding correlate at r = -0.03 over 236 years (1790–2025), p = 0.657. With the time trend removed, r = -0.14. Not statistically significant.
Verdict: Not statistically significant. With n = 236, this correlation isn't statistically significant (p = 0.657). It could easily be chance.
- Pearson r
- -0.03
- p-value
- 0.657
- Years compared (n)
- 236 (1790–2025)
- 95% confidence interval
- -0.16 to 0.10
- Correlation with the time trend removed
- -0.14
Sources
- Sunspot Number (yearly mean): SILSO. Yearly mean total sunspot number (SILSO, Royal Observatory of Belgium).
- US Federal Debt Outstanding (USD): U.S. Treasury. Total US federal debt outstanding at the end of each fiscal year (U.S. Treasury Fiscal Data).
Related pairs
- US Renewable Energy Share vs US Federal Debt Outstanding (r = +0.99)
- US Wind Power Generation vs US Federal Debt Outstanding (r = +0.99)
- US Federal Debt Outstanding vs US GDP (current US$) (r = +0.97)
- US Federal Debt Outstanding vs US GDP per Capita (r = +0.95)
- Atmospheric Methane (global) vs US Federal Debt Outstanding (r = +0.95)
- US Natural Gas Consumption vs US Federal Debt Outstanding (r = +0.94)
Correlation does not imply causation. How the verdict is worked out.