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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 2 |
| 1961 | 1 |
| 1963 | 1 |
| 1964 | 3 |
| 1965 | 42 |
| 1966 | 78 |
| 1967 | 131 |
| 1968 | 159 |
| 1969 | 164 |
| 1970 | 175 |
| 1971 | 193 |
| 1972 | 195 |
| 1973 | 192 |
| 1974 | 185 |
| 1975 | 187 |
| 1976 | 209 |
| 1977 | 252 |
| 1978 | 272 |
| 1979 | 298 |
| 1980 | 313 |
| 1981 | 332 |
| 1982 | 387 |
| 1983 | 382 |
| 1984 | 503 |
| 1985 | 541 |
| 1986 | 569 |
| 1987 | 607 |
| 1988 | 798 |
| 1989 | 865 |
| 1990 | 938 |
| 1991 | 924 |
| 1992 | 922 |
| 1993 | 1033 |
| 1994 | 1155 |
| 1995 | 1127 |
| 1996 | 1157 |
| 1997 | 1139 |
| 1998 | 1081 |
| 1999 | 1152 |
| 2000 | 1396 |
| 2001 | 1400 |
| 2002 | 1463 |
| 2003 | 1574 |
| 2004 | 1646 |
| 2005 | 1916 |
| 2006 | 2232 |
| 2007 | 2390 |
| 2008 | 2517 |
| 2009 | 2719 |
| 2010 | 2514 |
| 2011 | 2558 |
| 2012 | 2541 |
| 2013 | 2610 |
| 2014 | 2720 |
| 2015 | 2586 |
| 2016 | 2582 |
| 2017 | 2788 |
| 2018 | 2788 |
| 2019 | 3076 |
| 2020 | 2568 |
| 2021 | 1581 |
| 2022 | 202 |
| 2023 | 173 |
| 2024 | 2033 |
| 2025 | 1817 |