← All namesOlga
Raw counts
| Year | Count |
|---|
| 1910 | 448 |
| 1911 | 531 |
| 1912 | 815 |
| 1913 | 933 |
| 1914 | 1,314 |
| 1915 | 1,826 |
| 1916 | 2,023 |
| 1917 | 2,026 |
| 1918 | 2,056 |
| 1919 | 1,997 |
| 1920 | 1,861 |
| 1921 | 1,784 |
| 1922 | 1,437 |
| 1923 | 1,736 |
| 1924 | 1,913 |
| 1925 | 1,555 |
| 1926 | 1,495 |
| 1927 | 1,388 |
| 1928 | 1,311 |
| 1929 | 1,264 |
| 1930 | 1,099 |
| 1931 | 796 |
| 1932 | 718 |
| 1933 | 615 |
| 1934 | 451 |
| 1935 | 546 |
| 1936 | 317 |
| 1937 | 305 |
| 1938 | 295 |
| 1939 | 301 |
| 1940 | 275 |
| 1941 | 276 |
| 1941 | 5 |
| 1942 | 100 |
| 1943 | 647 |
| 1944 | 79 |
| 1945 | 47 |
| 1946 | 127 |
| 1947 | 175 |
| 1948 | 169 |
| 1949 | 146 |
| 1950 | 443 |
| 1951 | 519 |
| 1952 | 524 |
| 1953 | 565 |
| 1954 | 535 |
| 1955 | 558 |
| 1956 | 456 |
| 1957 | 575 |
| 1958 | 503 |
| 1959 | 522 |
| 1960 | 649 |
| 1961 | 539 |
| 1962 | 806 |
| 1963 | 296 |
| 1964 | 246 |
| 1965 | 185 |
| 1966 | 271 |
| 1967 | 224 |
| 1968 | 399 |
| 1969 | 368 |
| 1970 | 347 |
| 1971 | 358 |
| 1972 | 289 |
| 1973 | 303 |
| 1974 | 327 |
| 1975 | 273 |
| 1976 | 275 |
| 1977 | 234 |
| 1978 | 259 |
| 1979 | 220 |
| 1980 | 306 |
| 1981 | 190 |
| 1982 | 171 |
| 1983 | 194 |
| 1984 | 173 |
| 1985 | 167 |
| 1986 | 217 |
| 1987 | 207 |
| 1988 | 212 |
| 1989 | 235 |
| 1990 | 61 |
| 1991 | 100 |
| 1992 | 99 |
| 1993 | 108 |
| 1994 | 92 |
| 1995 | 54 |
| 1996 | 122 |
| 1997 | 117 |
| 1998 | 103 |
| 1999 | 80 |
| 2000 | 86 |
| 2001 | 120 |
| 2002 | 46 |
| 2003 | 40 |
| 2004 | 114 |
| 2005 | 108 |
| 2006 | 37 |
| 2007 | 60 |
| 2008 | 76 |
| 2009 | 18 |
| 2010 | 45 |
| 2011 | 11 |
| 2012 | 10 |
| 2013 | 10 |
| 2014 | 10 |
| 2015 | 55 |
| 2016 | 7 |
| 2017 | 31 |
| 2018 | 35 |
| 2019 | 22 |
| 2020 | 13 |
| 2021 | 30 |
| 2022 | 11 |
| 2023 | 9 |
| 2024 | 9 |