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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 1 |
| 1964 | 3 |
| 1965 | 24 |
| 1966 | 23 |
| 1967 | 28 |
| 1968 | 20 |
| 1969 | 26 |
| 1970 | 25 |
| 1971 | 23 |
| 1972 | 29 |
| 1973 | 25 |
| 1974 | 19 |
| 1975 | 37 |
| 1976 | 31 |
| 1977 | 45 |
| 1978 | 31 |
| 1979 | 44 |
| 1980 | 38 |
| 1981 | 49 |
| 1982 | 37 |
| 1983 | 48 |
| 1984 | 67 |
| 1985 | 50 |
| 1986 | 52 |
| 1987 | 68 |
| 1988 | 75 |
| 1989 | 79 |
| 1990 | 103 |
| 1991 | 130 |
| 1992 | 76 |
| 1993 | 61 |
| 1994 | 74 |
| 1995 | 61 |
| 1996 | 72 |
| 1997 | 120 |
| 1998 | 93 |
| 1999 | 107 |
| 2000 | 153 |
| 2001 | 224 |
| 2002 | 233 |
| 2003 | 232 |
| 2004 | 356 |
| 2005 | 407 |
| 2006 | 518 |
| 2007 | 571 |
| 2008 | 554 |
| 2009 | 587 |
| 2010 | 525 |
| 2011 | 709 |
| 2012 | 666 |
| 2013 | 645 |
| 2014 | 607 |
| 2015 | 452 |
| 2016 | 322 |
| 2017 | 311 |
| 2018 | 377 |
| 2019 | 324 |
| 2020 | 163 |
| 2021 | 71 |
| 2022 | 12 |
| 2023 | 4 |
| 2024 | 0 |