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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 3 |
| 1952 | 1 |
| 1953 | 1 |
| 1955 | 4 |
| 1956 | 2 |
| 1957 | 3 |
| 1958 | 2 |
| 1959 | 4 |
| 1960 | 6 |
| 1961 | 3 |
| 1962 | 4 |
| 1963 | 8 |
| 1964 | 8 |
| 1965 | 2 |
| 1966 | 7 |
| 1967 | 42 |
| 1968 | 84 |
| 1969 | 61 |
| 1970 | 97 |
| 1971 | 113 |
| 1972 | 126 |
| 1973 | 162 |
| 1974 | 151 |
| 1975 | 180 |
| 1976 | 135 |
| 1977 | 118 |
| 1978 | 116 |
| 1979 | 123 |
| 1980 | 133 |
| 1981 | 97 |
| 1982 | 118 |
| 1983 | 132 |
| 1984 | 155 |
| 1985 | 122 |
| 1986 | 156 |
| 1987 | 160 |
| 1988 | 147 |
| 1989 | 188 |
| 1990 | 189 |
| 1991 | 172 |
| 1992 | 184 |
| 1993 | 194 |
| 1994 | 185 |
| 1995 | 159 |
| 1996 | 164 |
| 1997 | 178 |
| 1998 | 175 |
| 1999 | 197 |
| 2000 | 210 |
| 2001 | 236 |
| 2002 | 230 |
| 2003 | 284 |
| 2004 | 305 |
| 2005 | 357 |
| 2006 | 406 |
| 2007 | 513 |
| 2008 | 547 |
| 2009 | 497 |
| 2010 | 534 |
| 2011 | 527 |
| 2012 | 504 |
| 2013 | 506 |
| 2014 | 537 |
| 2015 | 584 |
| 2016 | 506 |
| 2017 | 508 |
| 2018 | 529 |
| 2019 | 483 |
| 2020 | 411 |
| 2021 | 254 |
| 2022 | 126 |
| 2023 | 87 |
| 2024 | 24 |