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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 1 |
| 1951 | 1 |
| 1952 | 6 |
| 1954 | 1 |
| 1955 | 1 |
| 1956 | 5 |
| 1957 | 7 |
| 1958 | 6 |
| 1959 | 6 |
| 1960 | 6 |
| 1961 | 9 |
| 1962 | 5 |
| 1963 | 11 |
| 1964 | 4 |
| 1965 | 4 |
| 1967 | 2 |
| 1971 | 1 |
| 1974 | 2 |
| 1978 | 1 |
| 1979 | 35 |
| 1980 | 74 |
| 1981 | 76 |
| 1982 | 63 |
| 1983 | 57 |
| 1984 | 71 |
| 1985 | 62 |
| 1986 | 60 |
| 1987 | 57 |
| 1988 | 65 |
| 1989 | 73 |
| 1990 | 88 |
| 1991 | 90 |
| 1992 | 96 |
| 1993 | 88 |
| 1994 | 109 |
| 1995 | 110 |
| 1996 | 97 |
| 1997 | 101 |
| 1998 | 106 |
| 1999 | 138 |
| 2000 | 184 |
| 2001 | 209 |
| 2002 | 196 |
| 2003 | 185 |
| 2004 | 247 |
| 2005 | 233 |
| 2006 | 279 |
| 2007 | 307 |
| 2008 | 344 |
| 2009 | 294 |
| 2010 | 318 |
| 2011 | 373 |
| 2012 | 403 |
| 2013 | 367 |
| 2014 | 354 |
| 2015 | 420 |
| 2016 | 446 |
| 2017 | 382 |
| 2018 | 327 |
| 2019 | 350 |
| 2020 | 332 |
| 2021 | 294 |
| 2022 | 231 |
| 2023 | 162 |
| 2024 | 247 |
| 2025 | 249 |
| 2026 | 129 |