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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1957 | 3 |
| 1958 | 1 |
| 1959 | 16 |
| 1960 | 12 |
| 1961 | 11 |
| 1962 | 7 |
| 1965 | 9 |
| 1966 | 10 |
| 1967 | 16 |
| 1968 | 11 |
| 1969 | 5 |
| 1970 | 20 |
| 1971 | 13 |
| 1972 | 19 |
| 1973 | 22 |
| 1974 | 33 |
| 1975 | 27 |
| 1976 | 18 |
| 1977 | 30 |
| 1978 | 39 |
| 1979 | 45 |
| 1980 | 62 |
| 1981 | 65 |
| 1982 | 39 |
| 1983 | 63 |
| 1984 | 79 |
| 1985 | 74 |
| 1986 | 66 |
| 1987 | 54 |
| 1988 | 66 |
| 1989 | 77 |
| 1990 | 92 |
| 1991 | 101 |
| 1992 | 106 |
| 1993 | 102 |
| 1994 | 79 |
| 1995 | 102 |
| 1996 | 121 |
| 1997 | 131 |
| 1998 | 138 |
| 1999 | 173 |
| 2000 | 168 |
| 2001 | 184 |
| 2002 | 191 |
| 2003 | 276 |
| 2004 | 272 |
| 2005 | 234 |
| 2006 | 255 |
| 2007 | 314 |
| 2008 | 339 |
| 2009 | 345 |
| 2010 | 368 |
| 2011 | 429 |
| 2012 | 489 |
| 2013 | 547 |
| 2014 | 625 |
| 2015 | 641 |
| 2016 | 635 |
| 2017 | 638 |
| 2018 | 708 |
| 2019 | 713 |
| 2020 | 682 |
| 2021 | 491 |
| 2022 | 250 |
| 2023 | 143 |
| 2024 | 147 |