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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 2 |
| 1965 | 8 |
| 1966 | 22 |
| 1967 | 58 |
| 1968 | 45 |
| 1970 | 1 |
| 1971 | 2 |
| 1972 | 1 |
| 1974 | 1 |
| 1976 | 1 |
| 1977 | 2 |
| 1980 | 1 |
| 1981 | 1 |
| 1982 | 4 |
| 1983 | 3 |
| 1984 | 9 |
| 1985 | 2 |
| 1986 | 5 |
| 1987 | 6 |
| 1988 | 18 |
| 1989 | 151 |
| 1990 | 717 |
| 1991 | 938 |
| 1992 | 1207 |
| 1993 | 1200 |
| 1994 | 1424 |
| 1995 | 1583 |
| 1996 | 1692 |
| 1997 | 1697 |
| 1998 | 2126 |
| 1999 | 2012 |
| 2000 | 2337 |
| 2001 | 2564 |
| 2002 | 2955 |
| 2003 | 3838 |
| 2004 | 3211 |
| 2005 | 1801 |
| 2006 | 1513 |
| 2007 | 1472 |
| 2008 | 1417 |
| 2009 | 1363 |
| 2010 | 1387 |
| 2011 | 1335 |
| 2012 | 1268 |
| 2013 | 1325 |
| 2014 | 1247 |
| 2015 | 1210 |
| 2016 | 1234 |
| 2017 | 1219 |
| 2018 | 1179 |
| 2019 | 1246 |
| 2020 | 1112 |
| 2021 | 822 |
| 2022 | 407 |
| 2023 | 341 |
| 2024 | 432 |
| 2025 | 3 |