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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1919 | 1 |
| 1950 | 2 |
| 1952 | 1 |
| 1953 | 5 |
| 1954 | 1 |
| 1955 | 2 |
| 1956 | 1 |
| 1957 | 3 |
| 1958 | 3 |
| 1959 | 6 |
| 1960 | 1 |
| 1961 | 9 |
| 1962 | 12 |
| 1963 | 10 |
| 1964 | 10 |
| 1965 | 10 |
| 1966 | 13 |
| 1967 | 10 |
| 1968 | 12 |
| 1969 | 11 |
| 1970 | 30 |
| 1971 | 35 |
| 1972 | 24 |
| 1973 | 34 |
| 1974 | 45 |
| 1975 | 29 |
| 1976 | 30 |
| 1977 | 26 |
| 1978 | 52 |
| 1979 | 43 |
| 1980 | 43 |
| 1981 | 37 |
| 1982 | 69 |
| 1983 | 78 |
| 1984 | 75 |
| 1985 | 73 |
| 1986 | 89 |
| 1987 | 85 |
| 1988 | 114 |
| 1989 | 135 |
| 1990 | 121 |
| 1991 | 113 |
| 1992 | 139 |
| 1993 | 110 |
| 1994 | 134 |
| 1995 | 151 |
| 1996 | 129 |
| 1997 | 166 |
| 1998 | 135 |
| 1999 | 181 |
| 2000 | 189 |
| 2001 | 175 |
| 2002 | 238 |
| 2003 | 272 |
| 2004 | 234 |
| 2005 | 281 |
| 2006 | 300 |
| 2007 | 262 |
| 2008 | 290 |
| 2009 | 273 |
| 2010 | 332 |
| 2011 | 336 |
| 2012 | 384 |
| 2013 | 365 |
| 2014 | 356 |
| 2015 | 367 |
| 2016 | 416 |
| 2017 | 387 |
| 2018 | 425 |
| 2019 | 442 |
| 2020 | 499 |
| 2021 | 527 |
| 2022 | 484 |
| 2023 | 374 |