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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 11 |
| 1965 | 69 |
| 1966 | 51 |
| 1967 | 45 |
| 1968 | 66 |
| 1969 | 72 |
| 1970 | 49 |
| 1971 | 56 |
| 1972 | 76 |
| 1973 | 56 |
| 1974 | 73 |
| 1975 | 52 |
| 1976 | 35 |
| 1977 | 38 |
| 1978 | 22 |
| 1979 | 20 |
| 1980 | 59 |
| 1981 | 63 |
| 1982 | 93 |
| 1983 | 65 |
| 1984 | 91 |
| 1985 | 85 |
| 1986 | 83 |
| 1987 | 135 |
| 1988 | 147 |
| 1989 | 173 |
| 1990 | 217 |
| 1991 | 266 |
| 1992 | 325 |
| 1993 | 319 |
| 1994 | 362 |
| 1995 | 643 |
| 1996 | 870 |
| 1997 | 868 |
| 1998 | 1189 |
| 1999 | 1316 |
| 2000 | 1346 |
| 2001 | 1484 |
| 2002 | 1430 |
| 2003 | 1480 |
| 2004 | 1598 |
| 2005 | 1787 |
| 2006 | 1908 |
| 2007 | 2042 |
| 2008 | 2136 |
| 2009 | 2164 |
| 2010 | 2411 |
| 2011 | 2771 |
| 2012 | 2892 |
| 2013 | 2729 |
| 2014 | 2530 |
| 2015 | 2592 |
| 2016 | 2512 |
| 2017 | 2361 |
| 2018 | 2522 |
| 2019 | 2398 |
| 2020 | 2788 |
| 2021 | 2578 |
| 2022 | 1099 |
| 2023 | 830 |
| 2024 | 2617 |
| 2025 | 2355 |
| 2026 | 1 |