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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 2 |
| 1948 | 2 |
| 1949 | 4 |
| 1950 | 5 |
| 1951 | 5 |
| 1952 | 5 |
| 1953 | 1 |
| 1954 | 5 |
| 1955 | 5 |
| 1956 | 10 |
| 1957 | 8 |
| 1958 | 9 |
| 1959 | 7 |
| 1960 | 5 |
| 1961 | 11 |
| 1962 | 3 |
| 1963 | 10 |
| 1964 | 13 |
| 1965 | 7 |
| 1988 | 1 |
| 1989 | 6 |
| 1990 | 2 |
| 1991 | 7 |
| 1992 | 13 |
| 1993 | 8 |
| 1994 | 13 |
| 1995 | 24 |
| 1996 | 17 |
| 1997 | 14 |
| 1998 | 8 |
| 1999 | 8 |
| 2000 | 7 |
| 2001 | 9 |
| 2002 | 21 |
| 2003 | 61 |
| 2004 | 47 |
| 2005 | 120 |
| 2006 | 115 |
| 2007 | 145 |
| 2008 | 163 |
| 2009 | 232 |
| 2010 | 308 |
| 2011 | 342 |
| 2012 | 370 |
| 2013 | 344 |
| 2014 | 369 |
| 2015 | 397 |
| 2016 | 453 |
| 2017 | 387 |
| 2018 | 428 |
| 2019 | 413 |
| 2020 | 397 |
| 2021 | 230 |
| 2022 | 64 |
| 2023 | 46 |
| 2024 | 21 |