← All namesFern
Raw counts
| Year | Count |
|---|
| 1910 | 508 |
| 1911 | 585 |
| 1912 | 790 |
| 1913 | 931 |
| 1914 | 1,122 |
| 1915 | 1,604 |
| 1916 | 1,865 |
| 1917 | 1,706 |
| 1918 | 1,878 |
| 1919 | 1,557 |
| 1919 | 5 |
| 1920 | 1,751 |
| 1921 | 1,714 |
| 1921 | 7 |
| 1922 | 1,507 |
| 1923 | 1,539 |
| 1924 | 1,450 |
| 1925 | 1,301 |
| 1926 | 1,236 |
| 1927 | 1,192 |
| 1928 | 1,126 |
| 1929 | 947 |
| 1930 | 807 |
| 1931 | 723 |
| 1932 | 637 |
| 1933 | 626 |
| 1934 | 533 |
| 1935 | 521 |
| 1936 | 433 |
| 1937 | 378 |
| 1938 | 404 |
| 1939 | 345 |
| 1940 | 308 |
| 1941 | 302 |
| 1942 | 321 |
| 1943 | 330 |
| 1944 | 283 |
| 1945 | 203 |
| 1946 | 246 |
| 1947 | 235 |
| 1948 | 243 |
| 1949 | 234 |
| 1950 | 183 |
| 1951 | 249 |
| 1952 | 181 |
| 1953 | 223 |
| 1954 | 186 |
| 1955 | 160 |
| 1956 | 190 |
| 1957 | 193 |
| 1958 | 179 |
| 1959 | 221 |
| 1960 | 145 |
| 1961 | 138 |
| 1962 | 27 |
| 1963 | 66 |
| 1964 | 54 |
| 1965 | 39 |
| 1966 | 22 |
| 1967 | 23 |
| 1968 | 17 |
| 1969 | 18 |
| 1970 | 11 |
| 1971 | 15 |
| 1972 | 7 |
| 1973 | 10 |
| 2010 | 5 |
| 2014 | 15 |
| 2015 | 39 |
| 2016 | 14 |
| 2017 | 23 |
| 2018 | 65 |
| 2019 | 49 |
| 2020 | 76 |
| 2021 | 72 |
| 2022 | 86 |
| 2023 | 91 |
| 2024 | 139 |