← All namesIona
Raw counts
| Year | Count |
|---|
| 1910 | 103 |
| 1911 | 98 |
| 1912 | 141 |
| 1913 | 130 |
| 1914 | 137 |
| 1915 | 342 |
| 1916 | 405 |
| 1917 | 407 |
| 1918 | 515 |
| 1919 | 412 |
| 1920 | 468 |
| 1921 | 428 |
| 1922 | 315 |
| 1923 | 408 |
| 1924 | 400 |
| 1925 | 364 |
| 1926 | 312 |
| 1927 | 430 |
| 1928 | 381 |
| 1929 | 369 |
| 1930 | 268 |
| 1931 | 293 |
| 1932 | 213 |
| 1933 | 186 |
| 1934 | 198 |
| 1935 | 159 |
| 1936 | 144 |
| 1937 | 90 |
| 1938 | 89 |
| 1939 | 126 |
| 1940 | 35 |
| 1941 | 54 |
| 1942 | 63 |
| 1943 | 67 |
| 1944 | 45 |
| 1945 | 25 |
| 1946 | 30 |
| 1947 | 26 |
| 1948 | 33 |
| 1949 | 26 |
| 1950 | 37 |
| 1951 | 25 |
| 1952 | 24 |
| 1953 | 16 |
| 1954 | 30 |
| 1955 | 38 |
| 1956 | 5 |
| 1957 | 6 |
| 1958 | 6 |
| 1959 | 15 |
| 1961 | 6 |
| 1965 | 10 |
| 1970 | 5 |
| 2010 | 5 |
| 2012 | 5 |
| 2013 | 6 |
| 2014 | 10 |
| 2015 | 10 |
| 2016 | 6 |
| 2017 | 28 |
| 2018 | 18 |
| 2019 | 19 |
| 2021 | 17 |
| 2022 | 5 |
| 2023 | 6 |