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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1964 | 39 |
| 1965 | 206 |
| 1966 | 492 |
| 1967 | 665 |
| 1968 | 793 |
| 1969 | 995 |
| 1970 | 1073 |
| 1971 | 1298 |
| 1972 | 1609 |
| 1973 | 1633 |
| 1974 | 1723 |
| 1975 | 1640 |
| 1976 | 1459 |
| 1977 | 1332 |
| 1978 | 1205 |
| 1979 | 1202 |
| 1980 | 1174 |
| 1981 | 1065 |
| 1982 | 1234 |
| 1983 | 1269 |
| 1984 | 1324 |
| 1985 | 1376 |
| 1986 | 1397 |
| 1987 | 1486 |
| 1988 | 1633 |
| 1989 | 1786 |
| 1990 | 1960 |
| 1991 | 1999 |
| 1992 | 2030 |
| 1993 | 2044 |
| 1994 | 2043 |
| 1995 | 2133 |
| 1996 | 2028 |
| 1997 | 1986 |
| 1998 | 2210 |
| 1999 | 2365 |
| 2000 | 2485 |
| 2001 | 2588 |
| 2002 | 2456 |
| 2003 | 2565 |
| 2004 | 2575 |
| 2005 | 2765 |
| 2006 | 2740 |
| 2007 | 2735 |
| 2008 | 2863 |
| 2009 | 2736 |
| 2010 | 2976 |
| 2011 | 3339 |
| 2012 | 3407 |
| 2013 | 3394 |
| 2014 | 3173 |
| 2015 | 2897 |
| 2016 | 2702 |
| 2017 | 2472 |
| 2018 | 2481 |
| 2019 | 2250 |
| 2020 | 1784 |
| 2021 | 1239 |
| 2022 | 233 |
| 2023 | 65 |
| 2024 | 20 |