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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 4 |
| 1952 | 2 |
| 1953 | 5 |
| 1954 | 7 |
| 1955 | 9 |
| 1956 | 12 |
| 1957 | 22 |
| 1958 | 10 |
| 1959 | 4 |
| 1964 | 4 |
| 1965 | 34 |
| 1966 | 75 |
| 1967 | 125 |
| 1968 | 127 |
| 1969 | 162 |
| 1970 | 151 |
| 1971 | 129 |
| 1972 | 133 |
| 1973 | 177 |
| 1974 | 194 |
| 1975 | 170 |
| 1976 | 141 |
| 1977 | 162 |
| 1978 | 132 |
| 1979 | 166 |
| 1980 | 141 |
| 1981 | 137 |
| 1982 | 177 |
| 1983 | 194 |
| 1984 | 219 |
| 1985 | 215 |
| 1986 | 198 |
| 1987 | 212 |
| 1988 | 241 |
| 1989 | 237 |
| 1990 | 234 |
| 1991 | 240 |
| 1992 | 214 |
| 1993 | 212 |
| 1994 | 283 |
| 1995 | 334 |
| 1996 | 353 |
| 1997 | 370 |
| 1998 | 458 |
| 1999 | 464 |
| 2000 | 518 |
| 2001 | 557 |
| 2002 | 516 |
| 2003 | 556 |
| 2004 | 567 |
| 2005 | 561 |
| 2006 | 571 |
| 2007 | 562 |
| 2008 | 520 |
| 2009 | 443 |
| 2010 | 489 |
| 2011 | 606 |
| 2012 | 555 |
| 2013 | 576 |
| 2014 | 555 |
| 2015 | 557 |
| 2016 | 552 |
| 2017 | 580 |
| 2018 | 568 |
| 2019 | 516 |
| 2020 | 415 |
| 2021 | 251 |
| 2022 | 35 |
| 2023 | 16 |
| 2024 | 192 |