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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1954 | 2 |
| 1955 | 6 |
| 1956 | 10 |
| 1957 | 21 |
| 1958 | 21 |
| 1959 | 17 |
| 1960 | 16 |
| 1961 | 25 |
| 1962 | 16 |
| 1963 | 1 |
| 1964 | 1 |
| 1965 | 20 |
| 1966 | 43 |
| 1967 | 51 |
| 1968 | 57 |
| 1969 | 49 |
| 1970 | 59 |
| 1971 | 60 |
| 1972 | 73 |
| 1973 | 63 |
| 1974 | 63 |
| 1975 | 58 |
| 1976 | 74 |
| 1977 | 90 |
| 1978 | 85 |
| 1979 | 92 |
| 1980 | 97 |
| 1981 | 102 |
| 1982 | 128 |
| 1983 | 134 |
| 1984 | 134 |
| 1985 | 131 |
| 1986 | 178 |
| 1987 | 159 |
| 1988 | 142 |
| 1989 | 162 |
| 1990 | 162 |
| 1991 | 155 |
| 1992 | 138 |
| 1993 | 152 |
| 1994 | 213 |
| 1995 | 196 |
| 1996 | 215 |
| 1997 | 224 |
| 1998 | 232 |
| 1999 | 235 |
| 2000 | 229 |
| 2001 | 275 |
| 2002 | 252 |
| 2003 | 307 |
| 2004 | 283 |
| 2005 | 337 |
| 2006 | 333 |
| 2007 | 385 |
| 2008 | 399 |
| 2009 | 412 |
| 2010 | 457 |
| 2011 | 475 |
| 2012 | 542 |
| 2013 | 571 |
| 2014 | 590 |
| 2015 | 569 |
| 2016 | 516 |
| 2017 | 526 |
| 2018 | 489 |
| 2019 | 538 |
| 2020 | 453 |
| 2021 | 485 |
| 2022 | 413 |
| 2023 | 325 |
| 2024 | 102 |