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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1922 | 2 |
| 1939 | 2 |
| 1940 | 1 |
| 1947 | 1 |
| 1948 | 2 |
| 1949 | 3 |
| 1950 | 1 |
| 1951 | 3 |
| 1952 | 1 |
| 1953 | 3 |
| 1956 | 4 |
| 1958 | 3 |
| 1959 | 5 |
| 1960 | 3 |
| 1961 | 1 |
| 1962 | 1 |
| 1964 | 2 |
| 1965 | 6 |
| 1966 | 4 |
| 1967 | 6 |
| 1968 | 5 |
| 1969 | 9 |
| 1970 | 5 |
| 1971 | 12 |
| 1972 | 8 |
| 1973 | 16 |
| 1974 | 23 |
| 1975 | 13 |
| 1976 | 28 |
| 1977 | 23 |
| 1978 | 28 |
| 1979 | 39 |
| 1980 | 37 |
| 1981 | 51 |
| 1982 | 32 |
| 1983 | 46 |
| 1984 | 62 |
| 1985 | 69 |
| 1986 | 68 |
| 1987 | 83 |
| 1988 | 67 |
| 1989 | 81 |
| 1990 | 87 |
| 1991 | 67 |
| 1992 | 79 |
| 1993 | 74 |
| 1994 | 80 |
| 1995 | 75 |
| 1996 | 95 |
| 1997 | 98 |
| 1998 | 109 |
| 1999 | 107 |
| 2000 | 131 |
| 2001 | 118 |
| 2002 | 147 |
| 2003 | 137 |
| 2004 | 166 |
| 2005 | 170 |
| 2006 | 164 |
| 2007 | 185 |
| 2008 | 248 |
| 2009 | 284 |
| 2010 | 267 |
| 2011 | 261 |
| 2012 | 280 |
| 2013 | 282 |
| 2014 | 280 |
| 2015 | 300 |
| 2016 | 353 |
| 2017 | 339 |
| 2018 | 348 |
| 2019 | 387 |
| 2020 | 370 |
| 2021 | 418 |
| 2022 | 422 |
| 2023 | 368 |