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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1965 | 1 |
| 1966 | 1 |
| 1967 | 3 |
| 1968 | 3 |
| 1969 | 1 |
| 1970 | 7 |
| 1972 | 11 |
| 1973 | 21 |
| 1974 | 36 |
| 1975 | 69 |
| 1976 | 118 |
| 1977 | 221 |
| 1978 | 174 |
| 1979 | 222 |
| 1980 | 214 |
| 1981 | 181 |
| 1982 | 177 |
| 1983 | 159 |
| 1984 | 214 |
| 1985 | 263 |
| 1986 | 257 |
| 1987 | 358 |
| 1988 | 401 |
| 1989 | 494 |
| 1990 | 874 |
| 1991 | 1230 |
| 1992 | 1458 |
| 1993 | 1595 |
| 1994 | 1614 |
| 1995 | 1555 |
| 1996 | 1234 |
| 1997 | 1406 |
| 1998 | 1442 |
| 1999 | 1620 |
| 2000 | 1597 |
| 2001 | 1516 |
| 2002 | 1525 |
| 2003 | 1608 |
| 2004 | 1723 |
| 2005 | 1811 |
| 2006 | 1917 |
| 2007 | 2003 |
| 2008 | 2048 |
| 2009 | 2191 |
| 2010 | 2347 |
| 2011 | 2487 |
| 2012 | 2416 |
| 2013 | 2446 |
| 2014 | 2368 |
| 2015 | 2244 |
| 2016 | 2105 |
| 2017 | 2155 |
| 2018 | 2006 |
| 2019 | 1926 |
| 2020 | 2413 |
| 2021 | 2609 |
| 2022 | 525 |
| 2023 | 134 |
| 2024 | 2448 |
| 2025 | 1821 |