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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 1 |
| 1965 | 15 |
| 1966 | 22 |
| 1967 | 25 |
| 1968 | 30 |
| 1969 | 23 |
| 1970 | 30 |
| 1971 | 34 |
| 1972 | 34 |
| 1973 | 49 |
| 1974 | 54 |
| 1975 | 29 |
| 1976 | 30 |
| 1977 | 16 |
| 1978 | 26 |
| 1979 | 37 |
| 1980 | 31 |
| 1981 | 37 |
| 1982 | 43 |
| 1983 | 53 |
| 1984 | 62 |
| 1985 | 66 |
| 1986 | 55 |
| 1987 | 88 |
| 1988 | 79 |
| 1989 | 86 |
| 1990 | 104 |
| 1991 | 95 |
| 1992 | 94 |
| 1993 | 111 |
| 1994 | 97 |
| 1995 | 102 |
| 1996 | 86 |
| 1997 | 92 |
| 1998 | 149 |
| 1999 | 118 |
| 2000 | 114 |
| 2001 | 103 |
| 2002 | 142 |
| 2003 | 129 |
| 2004 | 141 |
| 2005 | 155 |
| 2006 | 151 |
| 2007 | 147 |
| 2008 | 171 |
| 2009 | 146 |
| 2010 | 171 |
| 2011 | 180 |
| 2012 | 194 |
| 2013 | 168 |
| 2014 | 173 |
| 2015 | 156 |
| 2016 | 235 |
| 2017 | 198 |
| 2018 | 195 |
| 2019 | 186 |
| 2020 | 368 |
| 2021 | 337 |
| 2022 | 303 |
| 2023 | 207 |
| 2024 | 214 |
| 2025 | 147 |