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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 | 3 |
| 1960 | 5 |
| 1961 | 7 |
| 1964 | 3 |
| 1965 | 8 |
| 1966 | 16 |
| 1967 | 9 |
| 1968 | 9 |
| 1969 | 17 |
| 1970 | 16 |
| 1971 | 28 |
| 1972 | 7 |
| 1973 | 17 |
| 1974 | 11 |
| 1975 | 14 |
| 1976 | 11 |
| 1977 | 21 |
| 1978 | 16 |
| 1979 | 17 |
| 1980 | 22 |
| 1981 | 22 |
| 1982 | 32 |
| 1983 | 17 |
| 1984 | 32 |
| 1985 | 27 |
| 1986 | 39 |
| 1987 | 50 |
| 1988 | 45 |
| 1989 | 36 |
| 1990 | 35 |
| 1991 | 46 |
| 1992 | 42 |
| 1993 | 64 |
| 1994 | 86 |
| 1995 | 79 |
| 1996 | 66 |
| 1997 | 82 |
| 1998 | 106 |
| 1999 | 136 |
| 2000 | 128 |
| 2001 | 100 |
| 2002 | 125 |
| 2003 | 147 |
| 2004 | 138 |
| 2005 | 138 |
| 2006 | 140 |
| 2007 | 184 |
| 2008 | 183 |
| 2009 | 217 |
| 2010 | 261 |
| 2011 | 260 |
| 2012 | 229 |
| 2013 | 260 |
| 2014 | 244 |
| 2015 | 261 |
| 2016 | 253 |
| 2017 | 221 |
| 2018 | 206 |
| 2019 | 234 |
| 2020 | 247 |
| 2021 | 291 |
| 2022 | 310 |
| 2023 | 274 |
| 2024 | 311 |
| 2025 | 213 |