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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1922 | 1 |
| 1950 | 1 |
| 1951 | 3 |
| 1954 | 4 |
| 1955 | 1 |
| 1956 | 7 |
| 1957 | 5 |
| 1958 | 1 |
| 1959 | 5 |
| 1960 | 3 |
| 1961 | 16 |
| 1962 | 24 |
| 1963 | 18 |
| 1964 | 32 |
| 1965 | 35 |
| 1966 | 22 |
| 1967 | 27 |
| 1968 | 29 |
| 1969 | 38 |
| 1970 | 30 |
| 1971 | 38 |
| 1972 | 34 |
| 1973 | 27 |
| 1974 | 35 |
| 1975 | 30 |
| 1976 | 42 |
| 1977 | 49 |
| 1978 | 82 |
| 1979 | 90 |
| 1980 | 76 |
| 1981 | 90 |
| 1982 | 108 |
| 1983 | 122 |
| 1984 | 123 |
| 1985 | 129 |
| 1986 | 147 |
| 1987 | 126 |
| 1988 | 156 |
| 1989 | 160 |
| 1990 | 167 |
| 1991 | 166 |
| 1992 | 174 |
| 1993 | 173 |
| 1994 | 182 |
| 1995 | 190 |
| 1996 | 199 |
| 1997 | 201 |
| 1998 | 199 |
| 1999 | 234 |
| 2000 | 217 |
| 2001 | 244 |
| 2002 | 231 |
| 2003 | 252 |
| 2004 | 294 |
| 2005 | 276 |
| 2006 | 252 |
| 2007 | 287 |
| 2008 | 291 |
| 2009 | 297 |
| 2010 | 286 |
| 2011 | 333 |
| 2012 | 340 |
| 2013 | 375 |
| 2014 | 372 |
| 2015 | 355 |
| 2016 | 355 |
| 2017 | 351 |
| 2018 | 359 |
| 2019 | 394 |
| 2020 | 369 |
| 2021 | 435 |
| 2022 | 448 |
| 2023 | 435 |
| 2024 | 412 |
| 2025 | 225 |