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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1921 | 1 |
| 1949 | 1 |
| 1950 | 1 |
| 1952 | 1 |
| 1953 | 3 |
| 1955 | 3 |
| 1956 | 2 |
| 1957 | 2 |
| 1958 | 1 |
| 1959 | 3 |
| 1960 | 6 |
| 1961 | 10 |
| 1962 | 19 |
| 1963 | 24 |
| 1964 | 10 |
| 1965 | 18 |
| 1966 | 24 |
| 1967 | 15 |
| 1968 | 19 |
| 1969 | 26 |
| 1970 | 25 |
| 1971 | 15 |
| 1972 | 28 |
| 1973 | 20 |
| 1974 | 30 |
| 1975 | 38 |
| 1976 | 39 |
| 1977 | 25 |
| 1978 | 38 |
| 1979 | 53 |
| 1980 | 32 |
| 1981 | 61 |
| 1982 | 79 |
| 1983 | 85 |
| 1984 | 79 |
| 1985 | 80 |
| 1986 | 111 |
| 1987 | 133 |
| 1988 | 144 |
| 1989 | 150 |
| 1990 | 153 |
| 1991 | 162 |
| 1992 | 200 |
| 1993 | 168 |
| 1994 | 192 |
| 1995 | 169 |
| 1996 | 164 |
| 1997 | 214 |
| 1998 | 231 |
| 1999 | 253 |
| 2000 | 258 |
| 2001 | 292 |
| 2002 | 281 |
| 2003 | 252 |
| 2004 | 263 |
| 2005 | 255 |
| 2006 | 286 |
| 2007 | 260 |
| 2008 | 252 |
| 2009 | 328 |
| 2010 | 269 |
| 2011 | 303 |
| 2012 | 320 |
| 2013 | 313 |
| 2014 | 332 |
| 2015 | 310 |
| 2016 | 380 |
| 2017 | 356 |
| 2018 | 406 |
| 2019 | 372 |
| 2020 | 450 |
| 2021 | 473 |
| 2022 | 468 |
| 2023 | 426 |
| 2024 | 368 |
| 2025 | 6 |