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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 5 |
| 1961 | 29 |
| 1962 | 32 |
| 1963 | 33 |
| 1964 | 41 |
| 1965 | 39 |
| 1966 | 18 |
| 1967 | 55 |
| 1968 | 61 |
| 1969 | 52 |
| 1970 | 56 |
| 1971 | 71 |
| 1972 | 63 |
| 1973 | 171 |
| 1974 | 41 |
| 1975 | 40 |
| 1976 | 43 |
| 1977 | 52 |
| 1978 | 46 |
| 1979 | 48 |
| 1980 | 66 |
| 1981 | 76 |
| 1982 | 81 |
| 1983 | 89 |
| 1984 | 92 |
| 1985 | 90 |
| 1986 | 114 |
| 1987 | 122 |
| 1988 | 162 |
| 1989 | 157 |
| 1990 | 160 |
| 1991 | 139 |
| 1992 | 152 |
| 1993 | 159 |
| 1994 | 165 |
| 1995 | 166 |
| 1996 | 170 |
| 1997 | 167 |
| 1998 | 155 |
| 1999 | 198 |
| 2000 | 144 |
| 2001 | 156 |
| 2002 | 147 |
| 2003 | 136 |
| 2004 | 134 |
| 2005 | 154 |
| 2006 | 236 |
| 2007 | 329 |
| 2008 | 330 |
| 2009 | 361 |
| 2010 | 247 |
| 2011 | 257 |
| 2012 | 270 |
| 2013 | 227 |
| 2014 | 207 |
| 2015 | 203 |
| 2016 | 211 |
| 2017 | 175 |
| 2018 | 192 |
| 2019 | 209 |
| 2020 | 237 |
| 2021 | 247 |
| 2022 | 182 |
| 2023 | 292 |
| 2024 | 227 |
| 2025 | 124 |