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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 1 |
| 1957 | 4 |
| 1958 | 3 |
| 1960 | 1 |
| 1961 | 7 |
| 1962 | 5 |
| 1963 | 18 |
| 1964 | 8 |
| 1965 | 20 |
| 1966 | 19 |
| 1967 | 19 |
| 1968 | 34 |
| 1969 | 13 |
| 1970 | 24 |
| 1971 | 27 |
| 1972 | 16 |
| 1973 | 24 |
| 1974 | 39 |
| 1975 | 44 |
| 1976 | 34 |
| 1977 | 41 |
| 1978 | 48 |
| 1979 | 56 |
| 1980 | 57 |
| 1981 | 64 |
| 1982 | 89 |
| 1983 | 100 |
| 1984 | 89 |
| 1985 | 101 |
| 1986 | 89 |
| 1987 | 109 |
| 1988 | 117 |
| 1989 | 127 |
| 1990 | 118 |
| 1991 | 141 |
| 1992 | 140 |
| 1993 | 133 |
| 1994 | 131 |
| 1995 | 139 |
| 1996 | 159 |
| 1997 | 155 |
| 1998 | 172 |
| 1999 | 200 |
| 2000 | 238 |
| 2001 | 220 |
| 2002 | 212 |
| 2003 | 211 |
| 2004 | 239 |
| 2005 | 250 |
| 2006 | 291 |
| 2007 | 303 |
| 2008 | 319 |
| 2009 | 345 |
| 2010 | 290 |
| 2011 | 330 |
| 2012 | 353 |
| 2013 | 375 |
| 2014 | 302 |
| 2015 | 314 |
| 2016 | 349 |
| 2017 | 347 |
| 2018 | 327 |
| 2019 | 322 |
| 2020 | 405 |
| 2021 | 476 |
| 2022 | 408 |
| 2023 | 407 |
| 2024 | 412 |
| 2025 | 13 |