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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1953 | 2 |
| 1956 | 1 |
| 1957 | 2 |
| 1958 | 2 |
| 1960 | 2 |
| 1961 | 6 |
| 1962 | 2 |
| 1964 | 1 |
| 1965 | 8 |
| 1966 | 19 |
| 1967 | 21 |
| 1968 | 34 |
| 1969 | 32 |
| 1970 | 33 |
| 1971 | 54 |
| 1972 | 32 |
| 1973 | 50 |
| 1974 | 49 |
| 1975 | 42 |
| 1976 | 39 |
| 1977 | 52 |
| 1978 | 48 |
| 1979 | 44 |
| 1980 | 87 |
| 1981 | 89 |
| 1982 | 92 |
| 1983 | 105 |
| 1984 | 127 |
| 1985 | 106 |
| 1986 | 108 |
| 1987 | 113 |
| 1988 | 95 |
| 1989 | 124 |
| 1990 | 147 |
| 1991 | 144 |
| 1992 | 129 |
| 1993 | 156 |
| 1994 | 128 |
| 1995 | 112 |
| 1996 | 126 |
| 1997 | 160 |
| 1998 | 139 |
| 1999 | 147 |
| 2000 | 186 |
| 2001 | 170 |
| 2002 | 217 |
| 2003 | 223 |
| 2004 | 219 |
| 2005 | 317 |
| 2006 | 296 |
| 2007 | 343 |
| 2008 | 392 |
| 2009 | 501 |
| 2010 | 479 |
| 2011 | 484 |
| 2012 | 493 |
| 2013 | 503 |
| 2014 | 512 |
| 2015 | 535 |
| 2016 | 463 |
| 2017 | 392 |
| 2018 | 430 |
| 2019 | 393 |
| 2020 | 252 |
| 2021 | 175 |
| 2022 | 68 |
| 2023 | 91 |
| 2024 | 46 |