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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 36 |
| 1961 | 13 |
| 1963 | 81 |
| 1964 | 99 |
| 1965 | 95 |
| 1966 | 120 |
| 1967 | 110 |
| 1968 | 118 |
| 1969 | 107 |
| 1970 | 84 |
| 1971 | 106 |
| 1972 | 109 |
| 1973 | 95 |
| 1974 | 84 |
| 1975 | 62 |
| 1976 | 96 |
| 1977 | 94 |
| 1978 | 132 |
| 1979 | 122 |
| 1980 | 128 |
| 1981 | 150 |
| 1982 | 162 |
| 1983 | 179 |
| 1984 | 183 |
| 1985 | 171 |
| 1986 | 143 |
| 1987 | 166 |
| 1988 | 167 |
| 1989 | 210 |
| 1990 | 239 |
| 1991 | 201 |
| 1992 | 185 |
| 1993 | 208 |
| 1994 | 229 |
| 1995 | 256 |
| 1996 | 251 |
| 1997 | 247 |
| 1998 | 257 |
| 1999 | 250 |
| 2000 | 234 |
| 2001 | 238 |
| 2002 | 285 |
| 2003 | 330 |
| 2004 | 322 |
| 2005 | 357 |
| 2006 | 358 |
| 2007 | 346 |
| 2008 | 453 |
| 2009 | 448 |
| 2010 | 411 |
| 2011 | 286 |
| 2012 | 346 |
| 2013 | 391 |
| 2014 | 308 |
| 2015 | 272 |
| 2016 | 255 |
| 2017 | 259 |
| 2018 | 282 |
| 2019 | 235 |
| 2020 | 178 |
| 2021 | 155 |
| 2022 | 147 |
| 2023 | 150 |
| 2024 | 228 |
| 2025 | 130 |