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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 1 |
| 1963 | 1 |
| 1964 | 2 |
| 1965 | 24 |
| 1966 | 59 |
| 1967 | 74 |
| 1968 | 93 |
| 1969 | 111 |
| 1970 | 114 |
| 1971 | 152 |
| 1972 | 150 |
| 1973 | 228 |
| 1974 | 305 |
| 1975 | 328 |
| 1976 | 402 |
| 1977 | 411 |
| 1978 | 287 |
| 1979 | 331 |
| 1980 | 336 |
| 1981 | 293 |
| 1982 | 378 |
| 1983 | 401 |
| 1984 | 517 |
| 1985 | 646 |
| 1986 | 677 |
| 1987 | 701 |
| 1988 | 604 |
| 1989 | 791 |
| 1990 | 820 |
| 1991 | 893 |
| 1992 | 1221 |
| 1993 | 1283 |
| 1994 | 1359 |
| 1995 | 1278 |
| 1996 | 1282 |
| 1997 | 1273 |
| 1998 | 1398 |
| 1999 | 1365 |
| 2000 | 1475 |
| 2001 | 1465 |
| 2002 | 1370 |
| 2003 | 1445 |
| 2004 | 1479 |
| 2005 | 1367 |
| 2006 | 1435 |
| 2007 | 1661 |
| 2008 | 1877 |
| 2009 | 2028 |
| 2010 | 2241 |
| 2011 | 2443 |
| 2012 | 2701 |
| 2013 | 3035 |
| 2014 | 3377 |
| 2015 | 3462 |
| 2016 | 3964 |
| 2017 | 4394 |
| 2018 | 4353 |
| 2019 | 4119 |
| 2020 | 3772 |
| 2021 | 3087 |
| 2022 | 1814 |
| 2023 | 1449 |
| 2024 | 467 |