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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1964 | 1 |
| 1965 | 29 |
| 1966 | 74 |
| 1967 | 70 |
| 1968 | 75 |
| 1969 | 85 |
| 1970 | 99 |
| 1971 | 84 |
| 1972 | 99 |
| 1973 | 110 |
| 1974 | 110 |
| 1975 | 132 |
| 1976 | 97 |
| 1977 | 97 |
| 1978 | 113 |
| 1979 | 99 |
| 1980 | 100 |
| 1981 | 124 |
| 1982 | 99 |
| 1983 | 135 |
| 1984 | 120 |
| 1985 | 131 |
| 1986 | 128 |
| 1987 | 134 |
| 1988 | 114 |
| 1989 | 133 |
| 1990 | 111 |
| 1991 | 113 |
| 1992 | 113 |
| 1993 | 125 |
| 1994 | 115 |
| 1995 | 111 |
| 1996 | 149 |
| 1997 | 110 |
| 1998 | 143 |
| 1999 | 138 |
| 2000 | 143 |
| 2001 | 139 |
| 2002 | 171 |
| 2003 | 155 |
| 2004 | 172 |
| 2005 | 224 |
| 2006 | 236 |
| 2007 | 251 |
| 2008 | 244 |
| 2009 | 205 |
| 2010 | 234 |
| 2011 | 305 |
| 2012 | 337 |
| 2013 | 357 |
| 2014 | 367 |
| 2015 | 363 |
| 2016 | 364 |
| 2017 | 335 |
| 2018 | 356 |
| 2019 | 364 |
| 2020 | 280 |
| 2021 | 164 |
| 2022 | 29 |
| 2023 | 3 |
| 2024 | 4 |