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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1960 | 3 |
| 1961 | 3 |
| 1962 | 1 |
| 1968 | 1 |
| 1969 | 2 |
| 1971 | 2 |
| 1972 | 1 |
| 1973 | 1 |
| 1974 | 2 |
| 1975 | 1 |
| 1976 | 4 |
| 1977 | 5 |
| 1978 | 4 |
| 1979 | 5 |
| 1980 | 3 |
| 1981 | 3 |
| 1982 | 3 |
| 1983 | 6 |
| 1984 | 16 |
| 1985 | 23 |
| 1986 | 37 |
| 1987 | 27 |
| 1988 | 35 |
| 1989 | 38 |
| 1990 | 67 |
| 1991 | 142 |
| 1992 | 148 |
| 1993 | 200 |
| 1994 | 220 |
| 1995 | 263 |
| 1996 | 246 |
| 1997 | 204 |
| 1998 | 237 |
| 1999 | 250 |
| 2000 | 301 |
| 2001 | 266 |
| 2002 | 275 |
| 2003 | 341 |
| 2004 | 372 |
| 2005 | 392 |
| 2006 | 327 |
| 2007 | 327 |
| 2008 | 349 |
| 2009 | 308 |
| 2010 | 395 |
| 2011 | 384 |
| 2012 | 339 |
| 2013 | 358 |
| 2014 | 460 |
| 2015 | 456 |
| 2016 | 372 |
| 2017 | 347 |
| 2018 | 353 |
| 2019 | 346 |
| 2020 | 347 |
| 2021 | 234 |
| 2022 | 100 |
| 2023 | 64 |
| 2024 | 29 |