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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 6 |
| 1958 | 3 |
| 1959 | 3 |
| 1960 | 5 |
| 1961 | 4 |
| 1962 | 5 |
| 1965 | 5 |
| 1966 | 16 |
| 1967 | 23 |
| 1968 | 36 |
| 1969 | 36 |
| 1970 | 34 |
| 1971 | 36 |
| 1972 | 41 |
| 1973 | 52 |
| 1974 | 46 |
| 1975 | 42 |
| 1976 | 62 |
| 1977 | 80 |
| 1978 | 71 |
| 1979 | 75 |
| 1980 | 73 |
| 1981 | 61 |
| 1982 | 92 |
| 1983 | 67 |
| 1984 | 63 |
| 1985 | 80 |
| 1986 | 90 |
| 1987 | 87 |
| 1988 | 79 |
| 1989 | 93 |
| 1990 | 84 |
| 1991 | 91 |
| 1992 | 89 |
| 1993 | 114 |
| 1994 | 85 |
| 1995 | 101 |
| 1996 | 108 |
| 1997 | 99 |
| 1998 | 128 |
| 1999 | 150 |
| 2000 | 139 |
| 2001 | 154 |
| 2002 | 157 |
| 2003 | 189 |
| 2004 | 155 |
| 2005 | 210 |
| 2006 | 220 |
| 2007 | 253 |
| 2008 | 216 |
| 2009 | 135 |
| 2010 | 153 |
| 2011 | 156 |
| 2012 | 163 |
| 2013 | 182 |
| 2014 | 184 |
| 2015 | 177 |
| 2016 | 162 |
| 2017 | 172 |
| 2018 | 201 |
| 2019 | 196 |
| 2020 | 392 |
| 2021 | 405 |
| 2022 | 471 |
| 2023 | 384 |
| 2024 | 317 |
| 2025 | 201 |