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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1954 | 1 |
| 1959 | 3 |
| 1961 | 2 |
| 1964 | 1 |
| 1965 | 7 |
| 1966 | 25 |
| 1967 | 42 |
| 1968 | 46 |
| 1969 | 38 |
| 1970 | 41 |
| 1971 | 43 |
| 1972 | 58 |
| 1973 | 38 |
| 1974 | 48 |
| 1975 | 34 |
| 1976 | 27 |
| 1977 | 33 |
| 1978 | 35 |
| 1979 | 39 |
| 1980 | 18 |
| 1981 | 35 |
| 1982 | 44 |
| 1983 | 51 |
| 1984 | 46 |
| 1985 | 61 |
| 1986 | 71 |
| 1987 | 66 |
| 1988 | 72 |
| 1989 | 93 |
| 1990 | 110 |
| 1991 | 103 |
| 1992 | 127 |
| 1993 | 147 |
| 1994 | 145 |
| 1995 | 127 |
| 1996 | 134 |
| 1997 | 152 |
| 1998 | 149 |
| 1999 | 171 |
| 2000 | 214 |
| 2001 | 201 |
| 2002 | 222 |
| 2003 | 238 |
| 2004 | 200 |
| 2005 | 250 |
| 2006 | 277 |
| 2007 | 285 |
| 2008 | 291 |
| 2009 | 283 |
| 2010 | 299 |
| 2011 | 330 |
| 2012 | 322 |
| 2013 | 327 |
| 2014 | 320 |
| 2015 | 383 |
| 2016 | 310 |
| 2017 | 294 |
| 2018 | 250 |
| 2019 | 247 |
| 2020 | 209 |
| 2021 | 187 |
| 2022 | 93 |
| 2023 | 71 |
| 2024 | 28 |