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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1960 | 1 |
| 1963 | 3 |
| 1964 | 6 |
| 1965 | 5 |
| 1966 | 8 |
| 1967 | 9 |
| 1968 | 10 |
| 1969 | 9 |
| 1970 | 18 |
| 1971 | 10 |
| 1972 | 12 |
| 1973 | 15 |
| 1974 | 17 |
| 1975 | 23 |
| 1976 | 7 |
| 1977 | 18 |
| 1978 | 19 |
| 1979 | 24 |
| 1980 | 19 |
| 1981 | 32 |
| 1982 | 27 |
| 1983 | 27 |
| 1984 | 34 |
| 1985 | 43 |
| 1986 | 66 |
| 1987 | 90 |
| 1988 | 74 |
| 1989 | 102 |
| 1990 | 122 |
| 1991 | 100 |
| 1992 | 123 |
| 1993 | 153 |
| 1994 | 152 |
| 1995 | 184 |
| 1996 | 207 |
| 1997 | 246 |
| 1998 | 300 |
| 1999 | 382 |
| 2000 | 491 |
| 2001 | 569 |
| 2002 | 670 |
| 2003 | 785 |
| 2004 | 883 |
| 2005 | 1141 |
| 2006 | 1257 |
| 2007 | 1532 |
| 2008 | 1779 |
| 2009 | 2023 |
| 2010 | 2349 |
| 2011 | 2839 |
| 2012 | 3005 |
| 2013 | 3183 |
| 2014 | 3334 |
| 2015 | 3481 |
| 2016 | 3445 |
| 2017 | 3311 |
| 2018 | 3402 |
| 2019 | 3533 |
| 2020 | 3922 |
| 2021 | 4115 |
| 2022 | 3698 |
| 2023 | 3375 |
| 2024 | 1302 |