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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1928 | 1 |
| 1952 | 3 |
| 1953 | 4 |
| 1959 | 1 |
| 1960 | 8 |
| 1961 | 2 |
| 1962 | 2 |
| 1966 | 5 |
| 1967 | 12 |
| 1968 | 9 |
| 1969 | 22 |
| 1970 | 11 |
| 1971 | 19 |
| 1972 | 13 |
| 1973 | 23 |
| 1974 | 27 |
| 1975 | 45 |
| 1976 | 35 |
| 1977 | 77 |
| 1978 | 183 |
| 1979 | 204 |
| 1980 | 288 |
| 1981 | 311 |
| 1982 | 385 |
| 1983 | 380 |
| 1984 | 464 |
| 1985 | 491 |
| 1986 | 451 |
| 1987 | 496 |
| 1988 | 583 |
| 1989 | 693 |
| 1990 | 1031 |
| 1991 | 1067 |
| 1992 | 1105 |
| 1993 | 885 |
| 1994 | 864 |
| 1995 | 904 |
| 1996 | 1165 |
| 1997 | 1251 |
| 1998 | 1443 |
| 1999 | 1468 |
| 2000 | 1565 |
| 2001 | 1727 |
| 2002 | 1781 |
| 2003 | 1967 |
| 2004 | 2124 |
| 2005 | 2024 |
| 2006 | 2374 |
| 2007 | 2322 |
| 2008 | 2524 |
| 2009 | 2444 |
| 2010 | 2708 |
| 2011 | 2734 |
| 2012 | 2981 |
| 2013 | 3165 |
| 2014 | 3269 |
| 2015 | 3361 |
| 2016 | 2916 |
| 2017 | 2799 |
| 2018 | 3058 |
| 2019 | 3139 |
| 2020 | 2465 |
| 2021 | 1279 |
| 2022 | 202 |
| 2023 | 167 |
| 2024 | 1128 |
| 2025 | 1584 |