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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 2 |
| 1952 | 1 |
| 1953 | 1 |
| 1958 | 1 |
| 1961 | 1 |
| 1962 | 1 |
| 1963 | 3 |
| 1964 | 9 |
| 1965 | 6 |
| 1966 | 10 |
| 1967 | 6 |
| 1968 | 4 |
| 1969 | 5 |
| 1970 | 4 |
| 1971 | 18 |
| 1972 | 12 |
| 1973 | 13 |
| 1974 | 6 |
| 1975 | 41 |
| 1976 | 25 |
| 1977 | 21 |
| 1978 | 25 |
| 1979 | 21 |
| 1980 | 31 |
| 1981 | 27 |
| 1982 | 32 |
| 1983 | 51 |
| 1984 | 50 |
| 1985 | 71 |
| 1986 | 77 |
| 1987 | 80 |
| 1988 | 116 |
| 1989 | 149 |
| 1990 | 169 |
| 1991 | 222 |
| 1992 | 155 |
| 1993 | 157 |
| 1994 | 186 |
| 1995 | 202 |
| 1996 | 245 |
| 1997 | 240 |
| 1998 | 252 |
| 1999 | 236 |
| 2000 | 356 |
| 2001 | 272 |
| 2002 | 281 |
| 2003 | 286 |
| 2004 | 269 |
| 2005 | 289 |
| 2006 | 289 |
| 2007 | 307 |
| 2008 | 293 |
| 2009 | 306 |
| 2010 | 312 |
| 2011 | 318 |
| 2012 | 375 |
| 2013 | 401 |
| 2014 | 439 |
| 2015 | 434 |
| 2016 | 434 |
| 2017 | 425 |
| 2018 | 533 |
| 2019 | 621 |
| 2020 | 666 |
| 2021 | 770 |
| 2022 | 682 |
| 2023 | 651 |
| 2024 | 749 |
| 2025 | 593 |
| 2026 | 2 |