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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 2 |
| 1954 | 1 |
| 1956 | 1 |
| 1957 | 1 |
| 1961 | 2 |
| 1963 | 2 |
| 1964 | 7 |
| 1965 | 74 |
| 1966 | 151 |
| 1967 | 208 |
| 1968 | 225 |
| 1969 | 307 |
| 1970 | 325 |
| 1971 | 357 |
| 1972 | 310 |
| 1973 | 288 |
| 1974 | 275 |
| 1975 | 189 |
| 1976 | 194 |
| 1977 | 152 |
| 1978 | 171 |
| 1979 | 171 |
| 1980 | 175 |
| 1981 | 138 |
| 1982 | 180 |
| 1983 | 187 |
| 1984 | 193 |
| 1985 | 181 |
| 1986 | 181 |
| 1987 | 178 |
| 1988 | 188 |
| 1989 | 194 |
| 1990 | 186 |
| 1991 | 209 |
| 1992 | 207 |
| 1993 | 180 |
| 1994 | 193 |
| 1995 | 213 |
| 1996 | 186 |
| 1997 | 238 |
| 1998 | 235 |
| 1999 | 257 |
| 2000 | 247 |
| 2001 | 311 |
| 2002 | 318 |
| 2003 | 325 |
| 2004 | 374 |
| 2005 | 426 |
| 2006 | 549 |
| 2007 | 501 |
| 2008 | 556 |
| 2009 | 562 |
| 2010 | 483 |
| 2011 | 580 |
| 2012 | 525 |
| 2013 | 550 |
| 2014 | 580 |
| 2015 | 523 |
| 2016 | 429 |
| 2017 | 458 |
| 2018 | 487 |
| 2019 | 501 |
| 2020 | 538 |
| 2021 | 367 |
| 2022 | 104 |
| 2023 | 71 |
| 2024 | 206 |
| 2025 | 136 |