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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 1 |
| 1962 | 1 |
| 1963 | 2 |
| 1964 | 1 |
| 1966 | 1 |
| 1968 | 1 |
| 1972 | 1 |
| 1974 | 2 |
| 1975 | 4 |
| 1976 | 4 |
| 1977 | 215 |
| 1978 | 638 |
| 1979 | 733 |
| 1980 | 836 |
| 1981 | 816 |
| 1982 | 948 |
| 1983 | 1076 |
| 1984 | 1181 |
| 1985 | 1138 |
| 1986 | 1286 |
| 1987 | 1454 |
| 1988 | 1230 |
| 1989 | 1356 |
| 1990 | 1557 |
| 1991 | 1599 |
| 1992 | 1494 |
| 1993 | 1748 |
| 1994 | 1848 |
| 1995 | 1923 |
| 1996 | 1539 |
| 1997 | 1561 |
| 1998 | 1604 |
| 1999 | 1365 |
| 2000 | 1347 |
| 2001 | 1305 |
| 2002 | 1222 |
| 2003 | 1389 |
| 2004 | 1417 |
| 2005 | 1577 |
| 2006 | 1750 |
| 2007 | 1766 |
| 2008 | 1620 |
| 2009 | 1526 |
| 2010 | 1576 |
| 2011 | 1724 |
| 2012 | 1982 |
| 2013 | 1802 |
| 2014 | 1792 |
| 2015 | 1778 |
| 2016 | 1916 |
| 2017 | 1922 |
| 2018 | 2072 |
| 2019 | 2163 |
| 2020 | 2571 |
| 2021 | 2577 |
| 2022 | 1271 |
| 2023 | 745 |
| 2024 | 632 |