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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 1 |
| 1958 | 4 |
| 1959 | 8 |
| 1960 | 6 |
| 1961 | 5 |
| 1962 | 3 |
| 1963 | 1 |
| 1965 | 14 |
| 1966 | 37 |
| 1967 | 41 |
| 1968 | 62 |
| 1969 | 70 |
| 1970 | 58 |
| 1971 | 71 |
| 1972 | 87 |
| 1973 | 72 |
| 1974 | 70 |
| 1975 | 84 |
| 1976 | 68 |
| 1977 | 72 |
| 1978 | 88 |
| 1979 | 92 |
| 1980 | 85 |
| 1981 | 99 |
| 1982 | 90 |
| 1983 | 126 |
| 1984 | 141 |
| 1985 | 122 |
| 1986 | 121 |
| 1987 | 151 |
| 1988 | 162 |
| 1989 | 157 |
| 1990 | 173 |
| 1991 | 168 |
| 1992 | 167 |
| 1993 | 157 |
| 1994 | 160 |
| 1995 | 161 |
| 1996 | 147 |
| 1997 | 159 |
| 1998 | 157 |
| 1999 | 182 |
| 2000 | 152 |
| 2001 | 148 |
| 2002 | 129 |
| 2003 | 189 |
| 2004 | 177 |
| 2005 | 176 |
| 2006 | 199 |
| 2007 | 244 |
| 2008 | 224 |
| 2009 | 243 |
| 2010 | 271 |
| 2011 | 315 |
| 2012 | 297 |
| 2013 | 286 |
| 2014 | 285 |
| 2015 | 307 |
| 2016 | 298 |
| 2017 | 299 |
| 2018 | 291 |
| 2019 | 288 |
| 2020 | 310 |
| 2021 | 290 |
| 2022 | 48 |
| 2023 | 25 |
| 2024 | 335 |
| 2025 | 349 |