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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 1 |
| 1966 | 12 |
| 1967 | 12 |
| 1968 | 13 |
| 1969 | 11 |
| 1970 | 11 |
| 1971 | 13 |
| 1972 | 6 |
| 1973 | 74 |
| 1974 | 134 |
| 1975 | 251 |
| 1976 | 318 |
| 1977 | 282 |
| 1978 | 331 |
| 1979 | 311 |
| 1980 | 355 |
| 1981 | 295 |
| 1982 | 315 |
| 1983 | 344 |
| 1984 | 322 |
| 1985 | 299 |
| 1986 | 393 |
| 1987 | 540 |
| 1988 | 884 |
| 1989 | 1006 |
| 1990 | 1078 |
| 1991 | 944 |
| 1992 | 974 |
| 1993 | 1116 |
| 1994 | 1240 |
| 1995 | 1344 |
| 1996 | 1443 |
| 1997 | 1376 |
| 1998 | 1301 |
| 1999 | 1380 |
| 2000 | 1418 |
| 2001 | 1378 |
| 2002 | 1378 |
| 2003 | 1574 |
| 2004 | 1792 |
| 2005 | 1954 |
| 2006 | 2003 |
| 2007 | 2196 |
| 2008 | 2358 |
| 2009 | 2408 |
| 2010 | 2653 |
| 2011 | 2843 |
| 2012 | 3095 |
| 2013 | 3363 |
| 2014 | 3616 |
| 2015 | 3752 |
| 2016 | 3073 |
| 2017 | 2959 |
| 2018 | 2992 |
| 2019 | 2811 |
| 2020 | 2468 |
| 2021 | 1696 |
| 2022 | 287 |
| 2023 | 213 |
| 2024 | 2834 |
| 2025 | 2344 |
| 2026 | 2 |