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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 22 |
| 1954 | 43 |
| 1955 | 19 |
| 1959 | 9 |
| 1960 | 1 |
| 1961 | 5 |
| 1962 | 8 |
| 1965 | 1 |
| 1966 | 30 |
| 1967 | 41 |
| 1968 | 40 |
| 1969 | 55 |
| 1970 | 62 |
| 1971 | 86 |
| 1972 | 68 |
| 1973 | 84 |
| 1974 | 111 |
| 1975 | 98 |
| 1976 | 90 |
| 1977 | 125 |
| 1978 | 89 |
| 1979 | 133 |
| 1980 | 122 |
| 1981 | 169 |
| 1982 | 166 |
| 1983 | 229 |
| 1984 | 209 |
| 1985 | 244 |
| 1986 | 213 |
| 1987 | 246 |
| 1988 | 214 |
| 1989 | 257 |
| 1990 | 307 |
| 1991 | 394 |
| 1992 | 473 |
| 1993 | 483 |
| 1994 | 558 |
| 1995 | 569 |
| 1996 | 528 |
| 1997 | 546 |
| 1998 | 589 |
| 1999 | 591 |
| 2000 | 663 |
| 2001 | 666 |
| 2002 | 589 |
| 2003 | 669 |
| 2004 | 735 |
| 2005 | 822 |
| 2006 | 946 |
| 2007 | 977 |
| 2008 | 1014 |
| 2009 | 1074 |
| 2010 | 1248 |
| 2011 | 1413 |
| 2012 | 1499 |
| 2013 | 1539 |
| 2014 | 1510 |
| 2015 | 1417 |
| 2016 | 1339 |
| 2017 | 1352 |
| 2018 | 1291 |
| 2019 | 1355 |
| 2020 | 1068 |
| 2021 | 745 |
| 2022 | 374 |
| 2023 | 322 |
| 2024 | 372 |