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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 1 |
| 1954 | 2 |
| 1955 | 2 |
| 1956 | 2 |
| 1957 | 1 |
| 1958 | 2 |
| 1959 | 4 |
| 1960 | 1 |
| 1961 | 2 |
| 1962 | 2 |
| 1965 | 6 |
| 1966 | 8 |
| 1967 | 17 |
| 1968 | 16 |
| 1969 | 28 |
| 1970 | 31 |
| 1971 | 33 |
| 1972 | 40 |
| 1973 | 31 |
| 1974 | 31 |
| 1975 | 35 |
| 1976 | 26 |
| 1977 | 47 |
| 1978 | 33 |
| 1979 | 38 |
| 1980 | 46 |
| 1981 | 56 |
| 1982 | 55 |
| 1983 | 71 |
| 1984 | 85 |
| 1985 | 79 |
| 1986 | 100 |
| 1987 | 95 |
| 1988 | 109 |
| 1989 | 130 |
| 1990 | 117 |
| 1991 | 133 |
| 1992 | 145 |
| 1993 | 136 |
| 1994 | 170 |
| 1995 | 110 |
| 1996 | 135 |
| 1997 | 140 |
| 1998 | 161 |
| 1999 | 171 |
| 2000 | 187 |
| 2001 | 198 |
| 2002 | 204 |
| 2003 | 219 |
| 2004 | 225 |
| 2005 | 223 |
| 2006 | 217 |
| 2007 | 247 |
| 2008 | 256 |
| 2009 | 268 |
| 2010 | 278 |
| 2011 | 356 |
| 2012 | 391 |
| 2013 | 376 |
| 2014 | 359 |
| 2015 | 355 |
| 2016 | 348 |
| 2017 | 311 |
| 2018 | 338 |
| 2019 | 294 |
| 2020 | 283 |
| 2021 | 274 |
| 2022 | 250 |
| 2023 | 207 |
| 2024 | 60 |