← All namesBerta
Raw counts
| Year | Count |
|---|
| 1910 | 31 |
| 1911 | 30 |
| 1912 | 52 |
| 1913 | 74 |
| 1914 | 60 |
| 1915 | 71 |
| 1916 | 69 |
| 1917 | 81 |
| 1918 | 114 |
| 1919 | 51 |
| 1920 | 77 |
| 1921 | 101 |
| 1922 | 82 |
| 1923 | 66 |
| 1924 | 79 |
| 1925 | 110 |
| 1926 | 114 |
| 1927 | 169 |
| 1928 | 162 |
| 1929 | 144 |
| 1930 | 120 |
| 1931 | 93 |
| 1932 | 134 |
| 1933 | 116 |
| 1934 | 78 |
| 1935 | 168 |
| 1936 | 86 |
| 1937 | 43 |
| 1938 | 54 |
| 1939 | 48 |
| 1940 | 35 |
| 1941 | 75 |
| 1942 | 18 |
| 1943 | 131 |
| 1944 | 5 |
| 1947 | 15 |
| 1948 | 5 |
| 1950 | 40 |
| 1951 | 33 |
| 1952 | 37 |
| 1953 | 26 |
| 1954 | 43 |
| 1955 | 35 |
| 1956 | 35 |
| 1957 | 34 |
| 1958 | 32 |
| 1959 | 31 |
| 1960 | 26 |
| 1961 | 24 |
| 1962 | 33 |
| 1967 | 14 |
| 1968 | 24 |
| 1969 | 26 |
| 1970 | 14 |
| 1971 | 19 |
| 1972 | 13 |
| 1973 | 9 |
| 1974 | 8 |
| 1975 | 7 |
| 1976 | 20 |
| 1977 | 21 |
| 1979 | 6 |
| 1980 | 10 |
| 1981 | 9 |
| 1982 | 9 |
| 1983 | 10 |
| 1984 | 7 |
| 1985 | 12 |
| 1987 | 10 |
| 1988 | 6 |
| 1997 | 5 |
| 1998 | 5 |
| 2001 | 5 |
| 2013 | 5 |