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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 1 |
| 1957 | 2 |
| 1958 | 1 |
| 1959 | 18 |
| 1960 | 34 |
| 1961 | 40 |
| 1962 | 27 |
| 1966 | 4 |
| 1967 | 28 |
| 1968 | 29 |
| 1969 | 29 |
| 1970 | 32 |
| 1971 | 47 |
| 1972 | 56 |
| 1973 | 39 |
| 1974 | 36 |
| 1975 | 21 |
| 1976 | 8 |
| 1977 | 20 |
| 1978 | 12 |
| 1979 | 13 |
| 1980 | 17 |
| 1981 | 17 |
| 1982 | 17 |
| 1983 | 25 |
| 1984 | 27 |
| 1985 | 20 |
| 1986 | 27 |
| 1987 | 25 |
| 1988 | 23 |
| 1989 | 39 |
| 1990 | 60 |
| 1991 | 91 |
| 1992 | 93 |
| 1993 | 131 |
| 1994 | 125 |
| 1995 | 161 |
| 1996 | 137 |
| 1997 | 103 |
| 1998 | 151 |
| 1999 | 173 |
| 2000 | 184 |
| 2001 | 161 |
| 2002 | 191 |
| 2003 | 217 |
| 2004 | 275 |
| 2005 | 248 |
| 2006 | 278 |
| 2007 | 260 |
| 2008 | 297 |
| 2009 | 239 |
| 2010 | 247 |
| 2011 | 251 |
| 2012 | 259 |
| 2013 | 268 |
| 2014 | 227 |
| 2015 | 249 |
| 2016 | 249 |
| 2017 | 204 |
| 2018 | 208 |
| 2019 | 213 |
| 2020 | 168 |
| 2021 | 146 |
| 2022 | 54 |
| 2023 | 24 |
| 2024 | 13 |