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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 1 |
| 1955 | 1 |
| 1959 | 3 |
| 1960 | 13 |
| 1961 | 28 |
| 1962 | 4 |
| 1963 | 1 |
| 1964 | 1 |
| 1965 | 9 |
| 1966 | 32 |
| 1967 | 31 |
| 1968 | 27 |
| 1969 | 39 |
| 1970 | 33 |
| 1971 | 57 |
| 1972 | 55 |
| 1973 | 71 |
| 1974 | 64 |
| 1975 | 61 |
| 1976 | 42 |
| 1977 | 70 |
| 1978 | 64 |
| 1979 | 86 |
| 1980 | 93 |
| 1981 | 108 |
| 1982 | 131 |
| 1983 | 114 |
| 1984 | 110 |
| 1985 | 115 |
| 1986 | 111 |
| 1987 | 88 |
| 1988 | 100 |
| 1989 | 115 |
| 1990 | 144 |
| 1991 | 118 |
| 1992 | 138 |
| 1993 | 151 |
| 1994 | 126 |
| 1995 | 125 |
| 1996 | 174 |
| 1997 | 191 |
| 1998 | 193 |
| 1999 | 192 |
| 2000 | 214 |
| 2001 | 201 |
| 2002 | 217 |
| 2003 | 247 |
| 2004 | 238 |
| 2005 | 290 |
| 2006 | 265 |
| 2007 | 360 |
| 2008 | 406 |
| 2009 | 411 |
| 2010 | 441 |
| 2011 | 505 |
| 2012 | 481 |
| 2013 | 505 |
| 2014 | 475 |
| 2015 | 460 |
| 2016 | 424 |
| 2017 | 407 |
| 2018 | 408 |
| 2019 | 346 |
| 2020 | 332 |
| 2021 | 311 |
| 2022 | 220 |
| 2023 | 182 |
| 2024 | 50 |