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Countries ranked by number of retractions
| Country | Absolute Frequency (n) | Relative Frequency (%) |
|---|---|---|
| China | 64 | 45.07 |
| Pakistan | 9 | 6.34 |
| India | 8 | 5.63 |
| Australia | 6 | 4.23 |
| Russia | 6 | 4.23 |
| United States | 6 | 4.23 |
| Egypt | 5 | 3.52 |
| Ethiopia | 4 | 2.82 |
| Saudi Arabia | 3 | 2.11 |
| United Kingdom | 3 | 2.11 |
| France | 2 | 1.41 |
| Indonesia | 2 | 1.41 |
| Italy | 2 | 1.41 |
| Japan | 2 | 1.41 |
| Morocco | 2 | 1.41 |
| South Korea | 2 | 1.41 |
| Tunisia | 2 | 1.41 |
| Others | 14 | 9.8 |
|
| ||
| Total | 142 | 100.00 |
