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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 1 |
| 1972 | 2 |
| 1973 | 11 |
| 1974 | 20 |
| 1975 | 33 |
| 1976 | 42 |
| 1977 | 42 |
| 1978 | 48 |
| 1979 | 71 |
| 1980 | 65 |
| 1981 | 90 |
| 1982 | 116 |
| 1983 | 105 |
| 1984 | 142 |
| 1985 | 211 |
| 1986 | 216 |
| 1987 | 156 |
| 1988 | 272 |
| 1989 | 314 |
| 1990 | 229 |
| 1991 | 251 |
| 1992 | 298 |
| 1993 | 375 |
| 1994 | 385 |
| 1995 | 509 |
| 1996 | 618 |
| 1997 | 601 |
| 1998 | 594 |
| 1999 | 674 |
| 2000 | 669 |
| 2001 | 638 |
| 2002 | 589 |
| 2003 | 776 |
| 2004 | 741 |
| 2005 | 793 |
| 2006 | 791 |
| 2007 | 898 |
| 2008 | 876 |
| 2009 | 1046 |
| 2010 | 1216 |
| 2011 | 1206 |
| 2012 | 1114 |
| 2013 | 1217 |
| 2014 | 1085 |
| 2015 | 1148 |
| 2016 | 1121 |
| 2017 | 1151 |
| 2018 | 1194 |
| 2019 | 1324 |
| 2020 | 1263 |
| 2021 | 1172 |
| 2022 | 581 |
| 2023 | 446 |
| 2024 | 192 |