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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 1 |
| 1956 | 1 |
| 1958 | 1 |
| 1960 | 2 |
| 1961 | 3 |
| 1962 | 4 |
| 1963 | 10 |
| 1964 | 9 |
| 1965 | 2 |
| 1966 | 1 |
| 1973 | 1 |
| 1975 | 1 |
| 1977 | 1 |
| 1978 | 3 |
| 1979 | 152 |
| 1980 | 318 |
| 1981 | 303 |
| 1982 | 271 |
| 1983 | 298 |
| 1984 | 353 |
| 1985 | 478 |
| 1986 | 691 |
| 1987 | 839 |
| 1988 | 897 |
| 1989 | 835 |
| 1990 | 887 |
| 1991 | 948 |
| 1992 | 1164 |
| 1993 | 1383 |
| 1994 | 1475 |
| 1995 | 1559 |
| 1996 | 1584 |
| 1997 | 1638 |
| 1998 | 1527 |
| 1999 | 1574 |
| 2000 | 1473 |
| 2001 | 1677 |
| 2002 | 1827 |
| 2003 | 1828 |
| 2004 | 1877 |
| 2005 | 2114 |
| 2006 | 2152 |
| 2007 | 2236 |
| 2008 | 2190 |
| 2009 | 2050 |
| 2010 | 2004 |
| 2011 | 2236 |
| 2012 | 2539 |
| 2013 | 2421 |
| 2014 | 2336 |
| 2015 | 2481 |
| 2016 | 2207 |
| 2017 | 2011 |
| 2018 | 1712 |
| 2019 | 1462 |
| 2020 | 1288 |
| 2021 | 1001 |
| 2022 | 525 |
| 2023 | 349 |
| 2024 | 621 |
| 2025 | 399 |