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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 1 |
| 1951 | 1 |
| 1953 | 1 |
| 1956 | 2 |
| 1957 | 5 |
| 1958 | 1 |
| 1959 | 5 |
| 1960 | 3 |
| 1961 | 6 |
| 1962 | 10 |
| 1963 | 8 |
| 1964 | 8 |
| 1965 | 5 |
| 1966 | 1 |
| 1967 | 5 |
| 1968 | 1 |
| 1969 | 4 |
| 1970 | 60 |
| 1971 | 205 |
| 1972 | 401 |
| 1973 | 450 |
| 1974 | 421 |
| 1975 | 336 |
| 1976 | 207 |
| 1977 | 196 |
| 1978 | 172 |
| 1979 | 210 |
| 1980 | 213 |
| 1981 | 199 |
| 1982 | 227 |
| 1983 | 304 |
| 1984 | 264 |
| 1985 | 244 |
| 1986 | 283 |
| 1987 | 247 |
| 1988 | 261 |
| 1989 | 363 |
| 1990 | 435 |
| 1991 | 450 |
| 1992 | 474 |
| 1993 | 752 |
| 1994 | 732 |
| 1995 | 889 |
| 1996 | 702 |
| 1997 | 873 |
| 1998 | 752 |
| 1999 | 804 |
| 2000 | 956 |
| 2001 | 905 |
| 2002 | 1053 |
| 2003 | 1158 |
| 2004 | 1353 |
| 2005 | 1394 |
| 2006 | 1593 |
| 2007 | 1747 |
| 2008 | 1761 |
| 2009 | 2142 |
| 2010 | 2286 |
| 2011 | 2313 |
| 2012 | 2447 |
| 2013 | 2663 |
| 2014 | 2670 |
| 2015 | 2663 |
| 2016 | 2403 |
| 2017 | 2474 |
| 2018 | 2496 |
| 2019 | 2431 |
| 2020 | 2481 |
| 2021 | 2295 |
| 2022 | 1945 |
| 2023 | 1733 |
| 2024 | 674 |