Hits on Google Labs Ngram Viewer (millions) for percentages divisible by 5, and close neighbors divisible by 4. The data were obtained by searching for bigrams such as “15 percent” in the Google English Books corpus for the years 1800–2000.
| Divisible by 5 . | Divisible by 4 . | ||
|---|---|---|---|
| Percentages . | Frequencies . | Percentages . | Frequencies . |
| 15 | 2.1 | 16 | 0.7 |
| 25 | 2.4 | 24 | 0.5 |
| 35 | 1.3 | 36 | 0.4 |
| 45 | 0.9 | 44 | 0.4 |
| 55 | 0.6 | 56 | 0.3 |
| 65 | 0.7 | 64 | 0.2 |
| 75 | 1.5 | 76 | 0.2 |
| 85 | 1.0 | 84 | 0.2 |
| 95 | 1.2 | 96 | 0.2 |
| Total | 11.7 | Total | 3.1 |
| Divisible by 5 . | Divisible by 4 . | ||
|---|---|---|---|
| Percentages . | Frequencies . | Percentages . | Frequencies . |
| 15 | 2.1 | 16 | 0.7 |
| 25 | 2.4 | 24 | 0.5 |
| 35 | 1.3 | 36 | 0.4 |
| 45 | 0.9 | 44 | 0.4 |
| 55 | 0.6 | 56 | 0.3 |
| 65 | 0.7 | 64 | 0.2 |
| 75 | 1.5 | 76 | 0.2 |
| 85 | 1.0 | 84 | 0.2 |
| 95 | 1.2 | 96 | 0.2 |
| Total | 11.7 | Total | 3.1 |