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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 1 |
| 1950 | 1 |
| 1951 | 1 |
| 1952 | 5 |
| 1953 | 2 |
| 1954 | 2 |
| 1955 | 1 |
| 1956 | 4 |
| 1957 | 1 |
| 1959 | 3 |
| 1960 | 1 |
| 1961 | 7 |
| 1962 | 11 |
| 1963 | 14 |
| 1964 | 5 |
| 1965 | 7 |
| 1966 | 12 |
| 1967 | 18 |
| 1968 | 7 |
| 1969 | 30 |
| 1970 | 17 |
| 1971 | 28 |
| 1972 | 30 |
| 1973 | 34 |
| 1974 | 30 |
| 1975 | 27 |
| 1976 | 30 |
| 1977 | 30 |
| 1978 | 33 |
| 1979 | 39 |
| 1980 | 29 |
| 1981 | 39 |
| 1982 | 49 |
| 1983 | 50 |
| 1984 | 49 |
| 1985 | 69 |
| 1986 | 77 |
| 1987 | 70 |
| 1988 | 83 |
| 1989 | 105 |
| 1990 | 108 |
| 1991 | 113 |
| 1992 | 102 |
| 1993 | 155 |
| 1994 | 162 |
| 1995 | 181 |
| 1996 | 215 |
| 1997 | 253 |
| 1998 | 324 |
| 1999 | 355 |
| 2000 | 485 |
| 2001 | 586 |
| 2002 | 598 |
| 2003 | 764 |
| 2004 | 904 |
| 2005 | 1025 |
| 2006 | 1149 |
| 2007 | 1419 |
| 2008 | 1595 |
| 2009 | 1759 |
| 2010 | 2025 |
| 2011 | 2346 |
| 2012 | 2600 |
| 2013 | 2685 |
| 2014 | 3027 |
| 2015 | 3150 |
| 2016 | 3177 |
| 2017 | 3129 |
| 2018 | 3166 |
| 2019 | 3269 |
| 2020 | 3535 |
| 2021 | 3771 |
| 2022 | 3420 |
| 2023 | 1478 |