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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1954 | 1 |
| 1955 | 1 |
| 1956 | 2 |
| 1960 | 1 |
| 1961 | 1 |
| 1962 | 2 |
| 1964 | 3 |
| 1965 | 2 |
| 1966 | 2 |
| 1967 | 5 |
| 1968 | 3 |
| 1969 | 1 |
| 1970 | 2 |
| 1971 | 2 |
| 1972 | 5 |
| 1973 | 1 |
| 1974 | 14 |
| 1975 | 20 |
| 1976 | 20 |
| 1977 | 13 |
| 1978 | 19 |
| 1979 | 14 |
| 1980 | 24 |
| 1981 | 23 |
| 1982 | 11 |
| 1983 | 13 |
| 1984 | 17 |
| 1985 | 18 |
| 1986 | 24 |
| 1987 | 14 |
| 1988 | 20 |
| 1989 | 298 |
| 1990 | 801 |
| 1991 | 1027 |
| 1992 | 1125 |
| 1993 | 1221 |
| 1994 | 1196 |
| 1995 | 1265 |
| 1996 | 1339 |
| 1997 | 1404 |
| 1998 | 1324 |
| 1999 | 1861 |
| 2000 | 1743 |
| 2001 | 2117 |
| 2002 | 1675 |
| 2003 | 1802 |
| 2004 | 1886 |
| 2005 | 1867 |
| 2006 | 1986 |
| 2007 | 2259 |
| 2008 | 2264 |
| 2009 | 2418 |
| 2010 | 2424 |
| 2011 | 2617 |
| 2012 | 2853 |
| 2013 | 2956 |
| 2014 | 2831 |
| 2015 | 2856 |
| 2016 | 2662 |
| 2017 | 2491 |
| 2018 | 2588 |
| 2019 | 2629 |
| 2020 | 3377 |
| 2021 | 3629 |
| 2022 | 2392 |
| 2023 | 2128 |
| 2024 | 3236 |
| 2025 | 2320 |