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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 2 |
| 1948 | 1 |
| 1950 | 2 |
| 1951 | 1 |
| 1952 | 2 |
| 1953 | 1 |
| 1955 | 1 |
| 1956 | 1 |
| 1957 | 1 |
| 1958 | 3 |
| 1959 | 2 |
| 1960 | 1 |
| 1961 | 4 |
| 1962 | 2 |
| 1963 | 2 |
| 1964 | 1 |
| 1965 | 3 |
| 1971 | 3 |
| 1972 | 15 |
| 1973 | 26 |
| 1974 | 14 |
| 1975 | 11 |
| 1976 | 10 |
| 1977 | 7 |
| 1978 | 26 |
| 1979 | 17 |
| 1980 | 12 |
| 1981 | 19 |
| 1982 | 12 |
| 1983 | 4 |
| 1984 | 11 |
| 1985 | 12 |
| 1986 | 13 |
| 1987 | 15 |
| 1988 | 15 |
| 1989 | 22 |
| 1990 | 25 |
| 1991 | 27 |
| 1992 | 31 |
| 1993 | 40 |
| 1994 | 52 |
| 1995 | 76 |
| 1996 | 87 |
| 1997 | 116 |
| 1998 | 130 |
| 1999 | 127 |
| 2000 | 142 |
| 2001 | 172 |
| 2002 | 156 |
| 2003 | 181 |
| 2004 | 200 |
| 2005 | 207 |
| 2006 | 209 |
| 2007 | 243 |
| 2008 | 272 |
| 2009 | 268 |
| 2010 | 273 |
| 2011 | 273 |
| 2012 | 282 |
| 2013 | 286 |
| 2014 | 240 |
| 2015 | 179 |
| 2016 | 108 |
| 2017 | 105 |
| 2018 | 67 |
| 2019 | 55 |
| 2020 | 31 |
| 2021 | 36 |
| 2022 | 27 |
| 2023 | 13 |
| 2024 | 12 |