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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 2 |
| 1954 | 14 |
| 1955 | 8 |
| 1956 | 7 |
| 1957 | 14 |
| 1958 | 11 |
| 1959 | 8 |
| 1960 | 6 |
| 1961 | 12 |
| 1962 | 3 |
| 1966 | 7 |
| 1967 | 19 |
| 1968 | 33 |
| 1969 | 37 |
| 1970 | 41 |
| 1971 | 35 |
| 1972 | 54 |
| 1973 | 64 |
| 1974 | 91 |
| 1975 | 68 |
| 1976 | 87 |
| 1977 | 148 |
| 1978 | 139 |
| 1979 | 153 |
| 1980 | 141 |
| 1981 | 104 |
| 1982 | 129 |
| 1983 | 128 |
| 1984 | 95 |
| 1985 | 138 |
| 1986 | 127 |
| 1987 | 115 |
| 1988 | 143 |
| 1989 | 151 |
| 1990 | 135 |
| 1991 | 160 |
| 1992 | 200 |
| 1993 | 233 |
| 1994 | 309 |
| 1995 | 309 |
| 1996 | 284 |
| 1997 | 317 |
| 1998 | 276 |
| 1999 | 296 |
| 2000 | 254 |
| 2001 | 234 |
| 2002 | 241 |
| 2003 | 248 |
| 2004 | 275 |
| 2005 | 288 |
| 2006 | 218 |
| 2007 | 251 |
| 2008 | 204 |
| 2009 | 202 |
| 2010 | 177 |
| 2011 | 151 |
| 2012 | 185 |
| 2013 | 160 |
| 2014 | 165 |
| 2015 | 198 |
| 2016 | 168 |
| 2017 | 150 |
| 2018 | 148 |
| 2019 | 138 |
| 2020 | 73 |
| 2021 | 55 |
| 2022 | 46 |
| 2023 | 28 |
| 2024 | 132 |
| 2025 | 101 |