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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1958 | 2 |
| 1959 | 34 |
| 1960 | 54 |
| 1961 | 72 |
| 1962 | 45 |
| 1964 | 2 |
| 1966 | 2 |
| 1967 | 10 |
| 1968 | 18 |
| 1969 | 15 |
| 1970 | 18 |
| 1971 | 41 |
| 1972 | 24 |
| 1973 | 37 |
| 1974 | 30 |
| 1975 | 49 |
| 1976 | 46 |
| 1977 | 49 |
| 1978 | 70 |
| 1979 | 71 |
| 1980 | 53 |
| 1981 | 64 |
| 1982 | 66 |
| 1983 | 69 |
| 1984 | 100 |
| 1985 | 106 |
| 1986 | 112 |
| 1987 | 159 |
| 1988 | 148 |
| 1989 | 207 |
| 1990 | 534 |
| 1991 | 1280 |
| 1992 | 1596 |
| 1993 | 1820 |
| 1994 | 2271 |
| 1995 | 2478 |
| 1996 | 2486 |
| 1997 | 2436 |
| 1998 | 2613 |
| 1999 | 2801 |
| 2000 | 3147 |
| 2001 | 3586 |
| 2002 | 3592 |
| 2003 | 4022 |
| 2004 | 4506 |
| 2005 | 4789 |
| 2006 | 4700 |
| 2007 | 4912 |
| 2008 | 4908 |
| 2009 | 4839 |
| 2010 | 5185 |
| 2011 | 5291 |
| 2012 | 5491 |
| 2013 | 5572 |
| 2014 | 5405 |
| 2015 | 5328 |
| 2016 | 4787 |
| 2017 | 4835 |
| 2018 | 4587 |
| 2019 | 4191 |
| 2020 | 3765 |
| 2021 | 2704 |
| 2022 | 1095 |
| 2023 | 674 |
| 2024 | 259 |