File:US Energy Flow-1980 (1973 projection).png
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![File:US Energy Flow-1980 (1973 projection).png](https://upload.wikimedia.org/wikipedia/commons/thumb/8/88/US_Energy_Flow-1980_%281973_projection%29.png/800px-US_Energy_Flow-1980_%281973_projection%29.png?20120901013857)
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Original file (1,000 × 630 pixels, file size: 372 KB, MIME type: image/png)