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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1952 | 4 |
| 1953 | 4 |
| 1955 | 5 |
| 1956 | 6 |
| 1957 | 2 |
| 1958 | 3 |
| 1959 | 2 |
| 1960 | 3 |
| 1961 | 5 |
| 1962 | 3 |
| 1963 | 5 |
| 1964 | 5 |
| 1965 | 3 |
| 1971 | 1 |
| 1976 | 2 |
| 1977 | 27 |
| 1978 | 53 |
| 1979 | 84 |
| 1980 | 81 |
| 1981 | 76 |
| 1982 | 81 |
| 1983 | 89 |
| 1984 | 105 |
| 1985 | 80 |
| 1986 | 118 |
| 1987 | 161 |
| 1988 | 200 |
| 1989 | 241 |
| 1990 | 297 |
| 1991 | 241 |
| 1992 | 283 |
| 1993 | 332 |
| 1994 | 379 |
| 1995 | 408 |
| 1996 | 506 |
| 1997 | 471 |
| 1998 | 447 |
| 1999 | 455 |
| 2000 | 482 |
| 2001 | 469 |
| 2002 | 399 |
| 2003 | 386 |
| 2004 | 398 |
| 2005 | 466 |
| 2006 | 460 |
| 2007 | 496 |
| 2008 | 479 |
| 2009 | 502 |
| 2010 | 526 |
| 2011 | 402 |
| 2012 | 343 |
| 2013 | 364 |
| 2014 | 340 |
| 2015 | 363 |
| 2016 | 322 |
| 2017 | 316 |
| 2018 | 358 |
| 2019 | 287 |
| 2020 | 234 |
| 2021 | 199 |
| 2022 | 175 |
| 2023 | 129 |
| 2024 | 40 |