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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 |
| 1957 | 2 |
| 1966 | 1 |
| 1971 | 3 |
| 1972 | 2 |
| 1973 | 4 |
| 1974 | 37 |
| 1975 | 157 |
| 1976 | 275 |
| 1977 | 347 |
| 1978 | 358 |
| 1979 | 439 |
| 1980 | 642 |
| 1981 | 749 |
| 1982 | 994 |
| 1983 | 1304 |
| 1984 | 1327 |
| 1985 | 1509 |
| 1986 | 1634 |
| 1987 | 1492 |
| 1988 | 1807 |
| 1989 | 2197 |
| 1990 | 2391 |
| 1991 | 2388 |
| 1992 | 2634 |
| 1993 | 2777 |
| 1994 | 2802 |
| 1995 | 2555 |
| 1996 | 2495 |
| 1997 | 2655 |
| 1998 | 2665 |
| 1999 | 2636 |
| 2000 | 2851 |
| 2001 | 2631 |
| 2002 | 2479 |
| 2003 | 2504 |
| 2004 | 2441 |
| 2005 | 2501 |
| 2006 | 2767 |
| 2007 | 2754 |
| 2008 | 2511 |
| 2009 | 2423 |
| 2010 | 2408 |
| 2011 | 2527 |
| 2012 | 2662 |
| 2013 | 2686 |
| 2014 | 2690 |
| 2015 | 2819 |
| 2016 | 2462 |
| 2017 | 2369 |
| 2018 | 2184 |
| 2019 | 2049 |
| 2020 | 1806 |
| 2021 | 1446 |
| 2022 | 379 |
| 2023 | 148 |
| 2024 | 96 |