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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1958 | 1 |
| 1959 | 3 |
| 1960 | 4 |
| 1961 | 5 |
| 1962 | 6 |
| 1963 | 10 |
| 1964 | 26 |
| 1965 | 45 |
| 1966 | 37 |
| 1967 | 31 |
| 1968 | 54 |
| 1969 | 55 |
| 1970 | 82 |
| 1971 | 105 |
| 1972 | 158 |
| 1973 | 178 |
| 1974 | 227 |
| 1975 | 172 |
| 1976 | 184 |
| 1977 | 172 |
| 1978 | 150 |
| 1979 | 151 |
| 1980 | 139 |
| 1981 | 145 |
| 1982 | 163 |
| 1983 | 146 |
| 1984 | 189 |
| 1985 | 192 |
| 1986 | 149 |
| 1987 | 158 |
| 1988 | 204 |
| 1989 | 246 |
| 1990 | 258 |
| 1991 | 278 |
| 1992 | 294 |
| 1993 | 300 |
| 1994 | 308 |
| 1995 | 315 |
| 1996 | 283 |
| 1997 | 303 |
| 1998 | 289 |
| 1999 | 315 |
| 2000 | 363 |
| 2001 | 469 |
| 2002 | 422 |
| 2003 | 460 |
| 2004 | 504 |
| 2005 | 565 |
| 2006 | 468 |
| 2007 | 536 |
| 2008 | 520 |
| 2009 | 457 |
| 2010 | 432 |
| 2011 | 365 |
| 2012 | 383 |
| 2013 | 317 |
| 2014 | 246 |
| 2015 | 203 |
| 2016 | 162 |
| 2017 | 109 |
| 2018 | 72 |
| 2019 | 59 |
| 2020 | 49 |
| 2021 | 50 |
| 2022 | 103 |
| 2023 | 70 |
| 2024 | 26 |