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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 | 3 |
| 1974 | 46 |
| 1975 | 98 |
| 1976 | 94 |
| 1977 | 133 |
| 1978 | 192 |
| 1979 | 250 |
| 1980 | 264 |
| 1981 | 182 |
| 1982 | 207 |
| 1983 | 187 |
| 1984 | 221 |
| 1985 | 249 |
| 1986 | 201 |
| 1987 | 205 |
| 1988 | 210 |
| 1989 | 196 |
| 1990 | 195 |
| 1991 | 206 |
| 1992 | 228 |
| 1993 | 209 |
| 1994 | 224 |
| 1995 | 203 |
| 1996 | 275 |
| 1997 | 262 |
| 1998 | 224 |
| 1999 | 276 |
| 2000 | 425 |
| 2001 | 562 |
| 2002 | 772 |
| 2003 | 759 |
| 2004 | 1172 |
| 2005 | 1197 |
| 2006 | 1125 |
| 2007 | 1131 |
| 2008 | 1216 |
| 2009 | 1417 |
| 2010 | 1568 |
| 2011 | 1540 |
| 2012 | 1573 |
| 2013 | 1456 |
| 2014 | 1525 |
| 2015 | 1793 |
| 2016 | 1778 |
| 2017 | 1825 |
| 2018 | 2109 |
| 2019 | 1869 |
| 2020 | 1395 |
| 2021 | 1081 |
| 2022 | 175 |
| 2023 | 46 |
| 2024 | 60 |