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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 9 |
| 1973 | 43 |
| 1974 | 46 |
| 1975 | 89 |
| 1976 | 97 |
| 1977 | 88 |
| 1978 | 86 |
| 1979 | 108 |
| 1980 | 109 |
| 1981 | 120 |
| 1982 | 119 |
| 1983 | 124 |
| 1984 | 151 |
| 1985 | 151 |
| 1986 | 197 |
| 1987 | 143 |
| 1988 | 154 |
| 1989 | 125 |
| 1990 | 121 |
| 1991 | 152 |
| 1992 | 163 |
| 1993 | 148 |
| 1994 | 176 |
| 1995 | 198 |
| 1996 | 189 |
| 1997 | 193 |
| 1998 | 174 |
| 1999 | 154 |
| 2000 | 209 |
| 2001 | 192 |
| 2002 | 180 |
| 2003 | 191 |
| 2004 | 179 |
| 2005 | 173 |
| 2006 | 174 |
| 2007 | 151 |
| 2008 | 182 |
| 2009 | 221 |
| 2010 | 185 |
| 2011 | 176 |
| 2012 | 157 |
| 2013 | 157 |
| 2014 | 137 |
| 2015 | 146 |
| 2016 | 134 |
| 2017 | 146 |
| 2018 | 136 |
| 2019 | 124 |
| 2020 | 136 |
| 2021 | 144 |
| 2022 | 112 |
| 2023 | 115 |
| 2024 | 50 |