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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1917 | 1 |
| 1944 | 1 |
| 1951 | 2 |
| 1954 | 1 |
| 1955 | 1 |
| 1957 | 4 |
| 1958 | 3 |
| 1959 | 5 |
| 1960 | 5 |
| 1961 | 5 |
| 1962 | 8 |
| 1963 | 14 |
| 1964 | 11 |
| 1965 | 10 |
| 1966 | 13 |
| 1967 | 8 |
| 1968 | 10 |
| 1969 | 12 |
| 1970 | 15 |
| 1971 | 17 |
| 1972 | 25 |
| 1973 | 22 |
| 1974 | 28 |
| 1975 | 25 |
| 1976 | 37 |
| 1977 | 43 |
| 1978 | 41 |
| 1979 | 36 |
| 1980 | 37 |
| 1981 | 27 |
| 1982 | 45 |
| 1983 | 49 |
| 1984 | 38 |
| 1985 | 46 |
| 1986 | 53 |
| 1987 | 55 |
| 1988 | 62 |
| 1989 | 66 |
| 1990 | 69 |
| 1991 | 77 |
| 1992 | 78 |
| 1993 | 91 |
| 1994 | 95 |
| 1995 | 97 |
| 1996 | 95 |
| 1997 | 70 |
| 1998 | 88 |
| 1999 | 125 |
| 2000 | 149 |
| 2001 | 141 |
| 2002 | 148 |
| 2003 | 190 |
| 2004 | 214 |
| 2005 | 251 |
| 2006 | 301 |
| 2007 | 397 |
| 2008 | 472 |
| 2009 | 527 |
| 2010 | 582 |
| 2011 | 774 |
| 2012 | 857 |
| 2013 | 1009 |
| 2014 | 1096 |
| 2015 | 1184 |
| 2016 | 1339 |
| 2017 | 1412 |
| 2018 | 1375 |
| 2019 | 1592 |
| 2020 | 2077 |
| 2021 | 2522 |
| 2022 | 2628 |
| 2023 | 1172 |