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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1949 | 1 |
| 1950 | 1 |
| 1953 | 1 |
| 1954 | 2 |
| 1960 | 1 |
| 1963 | 2 |
| 1964 | 1 |
| 1972 | 1 |
| 1974 | 6 |
| 1975 | 17 |
| 1976 | 22 |
| 1977 | 21 |
| 1978 | 38 |
| 1979 | 52 |
| 1980 | 32 |
| 1981 | 38 |
| 1982 | 49 |
| 1983 | 35 |
| 1984 | 46 |
| 1985 | 58 |
| 1986 | 54 |
| 1987 | 60 |
| 1988 | 49 |
| 1989 | 60 |
| 1990 | 46 |
| 1991 | 43 |
| 1992 | 50 |
| 1993 | 48 |
| 1994 | 49 |
| 1995 | 50 |
| 1996 | 45 |
| 1997 | 32 |
| 1998 | 45 |
| 1999 | 39 |
| 2000 | 42 |
| 2001 | 31 |
| 2002 | 57 |
| 2003 | 54 |
| 2004 | 75 |
| 2005 | 87 |
| 2006 | 99 |
| 2007 | 79 |
| 2008 | 89 |
| 2009 | 81 |
| 2010 | 114 |
| 2011 | 111 |
| 2012 | 147 |
| 2013 | 124 |
| 2014 | 145 |
| 2015 | 158 |
| 2016 | 159 |
| 2017 | 168 |
| 2018 | 173 |
| 2019 | 149 |
| 2020 | 157 |
| 2021 | 161 |
| 2022 | 144 |
| 2023 | 99 |
| 2024 | 28 |