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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 1 |
| 1964 | 2 |
| 1966 | 13 |
| 1967 | 31 |
| 1968 | 46 |
| 1969 | 50 |
| 1970 | 36 |
| 1971 | 64 |
| 1972 | 64 |
| 1973 | 88 |
| 1974 | 45 |
| 1975 | 59 |
| 1976 | 84 |
| 1977 | 63 |
| 1978 | 93 |
| 1979 | 89 |
| 1980 | 92 |
| 1981 | 81 |
| 1982 | 118 |
| 1983 | 102 |
| 1984 | 134 |
| 1985 | 162 |
| 1986 | 124 |
| 1987 | 166 |
| 1988 | 234 |
| 1989 | 279 |
| 1990 | 360 |
| 1991 | 435 |
| 1992 | 582 |
| 1993 | 671 |
| 1994 | 819 |
| 1995 | 938 |
| 1996 | 983 |
| 1997 | 1166 |
| 1998 | 1353 |
| 1999 | 1479 |
| 2000 | 1682 |
| 2001 | 1844 |
| 2002 | 1872 |
| 2003 | 2031 |
| 2004 | 2041 |
| 2005 | 2401 |
| 2006 | 2840 |
| 2007 | 3196 |
| 2008 | 3540 |
| 2009 | 3787 |
| 2010 | 4149 |
| 2011 | 4446 |
| 2012 | 4744 |
| 2013 | 4962 |
| 2014 | 5013 |
| 2015 | 5078 |
| 2016 | 4622 |
| 2017 | 4376 |
| 2018 | 4172 |
| 2019 | 4040 |
| 2020 | 3772 |
| 2021 | 2960 |
| 2022 | 595 |
| 2023 | 153 |
| 2024 | 341 |