Total babies named Masayuki (all years): 194
| Year | Boys (count / rank / %) |
|---|---|
| 1937 | 5 / #3851 / 0.000% |
| 1933 | 7 / #3187 / 0.001% |
| 1932 | 6 / #3627 / 0.001% |
| 1931 | 5 / #4137 / 0.000% |
| 1930 | 9 / #2931 / 0.001% |
| 1929 | 10 / #2702 / 0.001% |
| 1927 | 8 / #3344 / 0.001% |
| 1926 | 14 / #2267 / 0.001% |
| 1925 | 9 / #3058 / 0.001% |
| 1924 | 5 / #4744 / 0.000% |
| Year | Boys (count / rank / %) |
|---|---|
| 1923 | 18 / #1918 / 0.002% |
| 1922 | 17 / #2005 / 0.002% |
| 1921 | 8 / #3397 / 0.001% |
| 1920 | 19 / #1856 / 0.002% |
| 1919 | 13 / #2343 / 0.001% |
| 1918 | 11 / #2646 / 0.001% |
| 1917 | 13 / #2242 / 0.001% |
| 1916 | 12 / #2348 / 0.001% |
| 1915 | 5 / #4182 / 0.001% |