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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 |
| 1959 | 2 |
| 1960 | 1 |
| 1962 | 1 |
| 1963 | 1 |
| 1965 | 3 |
| 1966 | 5 |
| 1968 | 4 |
| 1969 | 3 |
| 1970 | 3 |
| 1971 | 4 |
| 1972 | 4 |
| 1973 | 6 |
| 1974 | 15 |
| 1975 | 10 |
| 1976 | 7 |
| 1977 | 20 |
| 1978 | 47 |
| 1979 | 36 |
| 1980 | 43 |
| 1981 | 34 |
| 1982 | 68 |
| 1983 | 101 |
| 1984 | 135 |
| 1985 | 163 |
| 1986 | 142 |
| 1987 | 175 |
| 1988 | 186 |
| 1989 | 174 |
| 1990 | 174 |
| 1991 | 165 |
| 1992 | 154 |
| 1993 | 170 |
| 1994 | 136 |
| 1995 | 167 |
| 1996 | 165 |
| 1997 | 157 |
| 1998 | 185 |
| 1999 | 178 |
| 2000 | 156 |
| 2001 | 204 |
| 2002 | 195 |
| 2003 | 230 |
| 2004 | 226 |
| 2005 | 249 |
| 2006 | 251 |
| 2007 | 290 |
| 2008 | 276 |
| 2009 | 272 |
| 2010 | 272 |
| 2011 | 265 |
| 2012 | 253 |
| 2013 | 261 |
| 2014 | 331 |
| 2015 | 334 |
| 2016 | 376 |
| 2017 | 352 |
| 2018 | 374 |
| 2019 | 422 |
| 2020 | 460 |
| 2021 | 444 |
| 2022 | 247 |
| 2023 | 166 |
| 2024 | 439 |
| 2025 | 284 |