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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1918 | 1 |
| 1920 | 1 |
| 1937 | 1 |
| 1938 | 1 |
| 1941 | 1 |
| 1942 | 1 |
| 1944 | 1 |
| 1946 | 1 |
| 1947 | 3 |
| 1948 | 13 |
| 1949 | 2 |
| 1950 | 4 |
| 1951 | 4 |
| 1952 | 5 |
| 1953 | 5 |
| 1954 | 7 |
| 1955 | 14 |
| 1956 | 4 |
| 1957 | 8 |
| 1958 | 13 |
| 1959 | 14 |
| 1960 | 16 |
| 1961 | 19 |
| 1962 | 22 |
| 1963 | 23 |
| 1964 | 27 |
| 1965 | 36 |
| 1966 | 28 |
| 1967 | 33 |
| 1968 | 42 |
| 1969 | 64 |
| 1970 | 53 |
| 1971 | 61 |
| 1972 | 69 |
| 1973 | 88 |
| 1974 | 91 |
| 1975 | 418 |
| 1976 | 419 |
| 1977 | 455 |
| 1978 | 469 |
| 1979 | 582 |
| 1980 | 586 |
| 1981 | 691 |
| 1982 | 707 |
| 1983 | 885 |
| 1984 | 939 |
| 1985 | 994 |
| 1986 | 1091 |
| 1987 | 1255 |
| 1988 | 1306 |
| 1989 | 1652 |
| 1990 | 1803 |
| 1991 | 1734 |
| 1992 | 1852 |
| 1993 | 1872 |
| 1994 | 2042 |
| 1995 | 2210 |
| 1996 | 2213 |
| 1997 | 2307 |
| 1998 | 2567 |
| 1999 | 2626 |
| 2000 | 2820 |
| 2001 | 2918 |
| 2002 | 3111 |
| 2003 | 3339 |
| 2004 | 3597 |
| 2005 | 3746 |
| 2006 | 3974 |
| 2007 | 4063 |
| 2008 | 4266 |
| 2009 | 4206 |
| 2010 | 4533 |
| 2011 | 5021 |
| 2012 | 5333 |
| 2013 | 5795 |
| 2014 | 6053 |
| 2015 | 5921 |
| 2016 | 5999 |
| 2017 | 6338 |
| 2018 | 6259 |
| 2019 | 6744 |
| 2020 | 7632 |
| 2021 | 8417 |
| 2022 | 8490 |
| 2023 | 8276 |
| 2024 | 3219 |