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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 2 |
| 1954 | 1 |
| 1957 | 1 |
| 1959 | 1 |
| 1966 | 4 |
| 1967 | 8 |
| 1968 | 24 |
| 1969 | 33 |
| 1970 | 32 |
| 1971 | 39 |
| 1972 | 56 |
| 1973 | 47 |
| 1974 | 56 |
| 1975 | 62 |
| 1976 | 37 |
| 1977 | 46 |
| 1978 | 48 |
| 1979 | 57 |
| 1980 | 46 |
| 1981 | 39 |
| 1982 | 69 |
| 1983 | 83 |
| 1984 | 52 |
| 1985 | 64 |
| 1986 | 84 |
| 1987 | 91 |
| 1988 | 114 |
| 1989 | 100 |
| 1990 | 120 |
| 1991 | 132 |
| 1992 | 125 |
| 1993 | 130 |
| 1994 | 143 |
| 1995 | 130 |
| 1996 | 158 |
| 1997 | 167 |
| 1998 | 158 |
| 1999 | 162 |
| 2000 | 175 |
| 2001 | 155 |
| 2002 | 209 |
| 2003 | 166 |
| 2004 | 165 |
| 2005 | 176 |
| 2006 | 150 |
| 2007 | 222 |
| 2008 | 194 |
| 2009 | 188 |
| 2010 | 234 |
| 2011 | 197 |
| 2012 | 245 |
| 2013 | 229 |
| 2014 | 273 |
| 2015 | 228 |
| 2016 | 215 |
| 2017 | 186 |
| 2018 | 161 |
| 2019 | 162 |
| 2020 | 122 |
| 2021 | 75 |
| 2022 | 8 |
| 2023 | 2 |
| 2024 | 1 |