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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 2 |
| 1956 | 2 |
| 1957 | 3 |
| 1958 | 2 |
| 1959 | 2 |
| 1960 | 3 |
| 1961 | 2 |
| 1962 | 2 |
| 1964 | 1 |
| 1965 | 19 |
| 1966 | 27 |
| 1967 | 23 |
| 1968 | 25 |
| 1969 | 44 |
| 1970 | 35 |
| 1971 | 35 |
| 1972 | 50 |
| 1973 | 47 |
| 1974 | 62 |
| 1975 | 84 |
| 1976 | 53 |
| 1977 | 43 |
| 1978 | 56 |
| 1979 | 54 |
| 1980 | 72 |
| 1981 | 60 |
| 1982 | 86 |
| 1983 | 108 |
| 1984 | 127 |
| 1985 | 114 |
| 1986 | 124 |
| 1987 | 137 |
| 1988 | 128 |
| 1989 | 120 |
| 1990 | 152 |
| 1991 | 104 |
| 1992 | 117 |
| 1993 | 115 |
| 1994 | 112 |
| 1995 | 120 |
| 1996 | 139 |
| 1997 | 127 |
| 1998 | 151 |
| 1999 | 187 |
| 2000 | 161 |
| 2001 | 213 |
| 2002 | 290 |
| 2003 | 332 |
| 2004 | 328 |
| 2005 | 371 |
| 2006 | 387 |
| 2007 | 442 |
| 2008 | 453 |
| 2009 | 492 |
| 2010 | 481 |
| 2011 | 512 |
| 2012 | 469 |
| 2013 | 463 |
| 2014 | 446 |
| 2015 | 412 |
| 2016 | 387 |
| 2017 | 446 |
| 2018 | 424 |
| 2019 | 397 |
| 2020 | 400 |
| 2021 | 361 |
| 2022 | 299 |
| 2023 | 216 |
| 2024 | 84 |