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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1951 | 3 |
| 1952 | 24 |
| 1953 | 34 |
| 1954 | 28 |
| 1955 | 31 |
| 1956 | 26 |
| 1957 | 41 |
| 1958 | 40 |
| 1959 | 30 |
| 1960 | 33 |
| 1961 | 51 |
| 1962 | 30 |
| 1963 | 2 |
| 1964 | 7 |
| 1965 | 52 |
| 1966 | 118 |
| 1967 | 108 |
| 1968 | 96 |
| 1969 | 138 |
| 1970 | 86 |
| 1971 | 105 |
| 1972 | 121 |
| 1973 | 122 |
| 1974 | 127 |
| 1975 | 135 |
| 1976 | 113 |
| 1977 | 123 |
| 1978 | 133 |
| 1979 | 149 |
| 1980 | 136 |
| 1981 | 136 |
| 1982 | 174 |
| 1983 | 163 |
| 1984 | 202 |
| 1985 | 169 |
| 1986 | 203 |
| 1987 | 213 |
| 1988 | 168 |
| 1989 | 184 |
| 1990 | 182 |
| 1991 | 183 |
| 1992 | 166 |
| 1993 | 179 |
| 1994 | 207 |
| 1995 | 173 |
| 1996 | 192 |
| 1997 | 263 |
| 1998 | 175 |
| 1999 | 204 |
| 2000 | 226 |
| 2001 | 233 |
| 2002 | 317 |
| 2003 | 371 |
| 2004 | 342 |
| 2005 | 341 |
| 2006 | 429 |
| 2007 | 484 |
| 2008 | 456 |
| 2009 | 434 |
| 2010 | 411 |
| 2011 | 482 |
| 2012 | 558 |
| 2013 | 513 |
| 2014 | 514 |
| 2015 | 541 |
| 2016 | 529 |
| 2017 | 429 |
| 2018 | 369 |
| 2019 | 317 |
| 2020 | 260 |
| 2021 | 175 |
| 2022 | 74 |
| 2023 | 88 |
| 2024 | 152 |
| 2025 | 174 |