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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1965 | 1 |
| 1970 | 2 |
| 1972 | 4 |
| 1973 | 4 |
| 1974 | 5 |
| 1975 | 12 |
| 1976 | 9 |
| 1977 | 19 |
| 1978 | 13 |
| 1979 | 24 |
| 1980 | 25 |
| 1981 | 24 |
| 1982 | 22 |
| 1983 | 25 |
| 1984 | 38 |
| 1985 | 18 |
| 1986 | 46 |
| 1987 | 81 |
| 1988 | 104 |
| 1989 | 110 |
| 1990 | 131 |
| 1991 | 141 |
| 1992 | 140 |
| 1993 | 145 |
| 1994 | 164 |
| 1995 | 166 |
| 1996 | 182 |
| 1997 | 197 |
| 1998 | 248 |
| 1999 | 232 |
| 2000 | 303 |
| 2001 | 262 |
| 2002 | 286 |
| 2003 | 294 |
| 2004 | 329 |
| 2005 | 353 |
| 2006 | 373 |
| 2007 | 399 |
| 2008 | 471 |
| 2009 | 521 |
| 2010 | 522 |
| 2011 | 591 |
| 2012 | 655 |
| 2013 | 618 |
| 2014 | 820 |
| 2015 | 895 |
| 2016 | 720 |
| 2017 | 677 |
| 2018 | 920 |
| 2019 | 1028 |
| 2020 | 1231 |
| 2021 | 1419 |
| 2022 | 1410 |
| 2023 | 1275 |
| 2024 | 1078 |
| 2025 | 12 |