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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 3 |
| 1950 | 1 |
| 1951 | 11 |
| 1952 | 18 |
| 1953 | 26 |
| 1954 | 32 |
| 1955 | 33 |
| 1956 | 58 |
| 1957 | 78 |
| 1958 | 65 |
| 1959 | 64 |
| 1960 | 71 |
| 1961 | 78 |
| 1962 | 94 |
| 1963 | 140 |
| 1964 | 154 |
| 1965 | 75 |
| 1968 | 1 |
| 1973 | 1 |
| 1974 | 1 |
| 1975 | 56 |
| 1976 | 81 |
| 1977 | 102 |
| 1978 | 117 |
| 1979 | 126 |
| 1980 | 178 |
| 1981 | 220 |
| 1982 | 309 |
| 1983 | 329 |
| 1984 | 428 |
| 1985 | 477 |
| 1986 | 619 |
| 1987 | 470 |
| 1988 | 598 |
| 1989 | 559 |
| 1990 | 556 |
| 1991 | 539 |
| 1992 | 607 |
| 1993 | 606 |
| 1994 | 525 |
| 1995 | 462 |
| 1996 | 380 |
| 1997 | 388 |
| 1998 | 433 |
| 1999 | 369 |
| 2000 | 309 |
| 2001 | 305 |
| 2002 | 321 |
| 2003 | 298 |
| 2004 | 318 |
| 2005 | 304 |
| 2006 | 323 |
| 2007 | 318 |
| 2008 | 362 |
| 2009 | 331 |
| 2010 | 310 |
| 2011 | 311 |
| 2012 | 267 |
| 2013 | 255 |
| 2014 | 232 |
| 2015 | 216 |
| 2016 | 224 |
| 2017 | 191 |
| 2018 | 186 |
| 2019 | 197 |
| 2020 | 188 |
| 2021 | 156 |
| 2022 | 153 |
| 2023 | 34 |