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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 6 |
| 1967 | 32 |
| 1968 | 61 |
| 1969 | 65 |
| 1970 | 79 |
| 1971 | 98 |
| 1972 | 104 |
| 1973 | 86 |
| 1974 | 124 |
| 1975 | 160 |
| 1976 | 97 |
| 1977 | 138 |
| 1978 | 109 |
| 1979 | 79 |
| 1980 | 91 |
| 1981 | 144 |
| 1982 | 92 |
| 1983 | 77 |
| 1984 | 66 |
| 1985 | 70 |
| 1986 | 62 |
| 1987 | 66 |
| 1988 | 71 |
| 1989 | 67 |
| 1990 | 63 |
| 1991 | 48 |
| 1992 | 29 |
| 1993 | 23 |
| 1994 | 21 |
| 1995 | 30 |
| 1996 | 29 |
| 1997 | 31 |
| 1998 | 55 |
| 1999 | 53 |
| 2000 | 58 |
| 2001 | 52 |
| 2002 | 74 |
| 2003 | 53 |
| 2004 | 77 |
| 2005 | 118 |
| 2006 | 132 |
| 2007 | 159 |
| 2008 | 132 |
| 2009 | 167 |
| 2010 | 192 |
| 2011 | 284 |
| 2012 | 344 |
| 2013 | 394 |
| 2014 | 437 |
| 2015 | 474 |
| 2016 | 464 |
| 2017 | 544 |
| 2018 | 504 |
| 2019 | 445 |
| 2020 | 328 |
| 2021 | 196 |
| 2022 | 20 |
| 2023 | 9 |
| 2024 | 55 |