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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 | 2 |
| 1953 | 2 |
| 1954 | 5 |
| 1955 | 2 |
| 1956 | 3 |
| 1957 | 6 |
| 1958 | 7 |
| 1959 | 4 |
| 1960 | 11 |
| 1961 | 11 |
| 1962 | 22 |
| 1963 | 42 |
| 1964 | 46 |
| 1965 | 23 |
| 1966 | 25 |
| 1967 | 38 |
| 1968 | 26 |
| 1969 | 22 |
| 1970 | 34 |
| 1971 | 31 |
| 1972 | 25 |
| 1973 | 38 |
| 1974 | 32 |
| 1975 | 43 |
| 1976 | 17 |
| 1977 | 32 |
| 1978 | 29 |
| 1979 | 12 |
| 1980 | 26 |
| 1981 | 40 |
| 1982 | 49 |
| 1983 | 36 |
| 1984 | 34 |
| 1985 | 36 |
| 1986 | 73 |
| 1987 | 34 |
| 1988 | 30 |
| 1989 | 37 |
| 1990 | 39 |
| 1991 | 30 |
| 1992 | 22 |
| 1993 | 32 |
| 1994 | 43 |
| 1995 | 48 |
| 1996 | 50 |
| 1997 | 57 |
| 1998 | 77 |
| 1999 | 82 |
| 2000 | 105 |
| 2001 | 183 |
| 2002 | 210 |
| 2003 | 239 |
| 2004 | 245 |
| 2005 | 279 |
| 2006 | 261 |
| 2007 | 302 |
| 2008 | 307 |
| 2009 | 320 |
| 2010 | 297 |
| 2011 | 326 |
| 2012 | 340 |
| 2013 | 324 |
| 2014 | 323 |
| 2015 | 392 |
| 2016 | 367 |
| 2017 | 377 |
| 2018 | 370 |
| 2019 | 376 |
| 2020 | 209 |
| 2021 | 158 |
| 2022 | 150 |
| 2023 | 78 |
| 2024 | 27 |