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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 35 |
| 1973 | 43 |
| 1974 | 49 |
| 1975 | 66 |
| 1976 | 120 |
| 1977 | 154 |
| 1978 | 126 |
| 1979 | 154 |
| 1980 | 149 |
| 1981 | 153 |
| 1982 | 147 |
| 1983 | 162 |
| 1984 | 167 |
| 1985 | 165 |
| 1986 | 169 |
| 1987 | 162 |
| 1988 | 144 |
| 1989 | 146 |
| 1990 | 176 |
| 1991 | 164 |
| 1992 | 187 |
| 1993 | 207 |
| 1994 | 254 |
| 1995 | 218 |
| 1996 | 234 |
| 1997 | 237 |
| 1998 | 251 |
| 1999 | 249 |
| 2000 | 247 |
| 2001 | 249 |
| 2002 | 227 |
| 2003 | 247 |
| 2004 | 227 |
| 2005 | 228 |
| 2006 | 261 |
| 2007 | 450 |
| 2008 | 494 |
| 2009 | 443 |
| 2010 | 266 |
| 2011 | 273 |
| 2012 | 289 |
| 2013 | 437 |
| 2014 | 439 |
| 2015 | 406 |
| 2016 | 363 |
| 2017 | 301 |
| 2018 | 289 |
| 2019 | 254 |
| 2020 | 247 |
| 2021 | 322 |
| 2022 | 270 |
| 2023 | 224 |
| 2024 | 199 |
| 2025 | 181 |