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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1953 | 2 |
| 1954 | 2 |
| 1955 | 5 |
| 1956 | 6 |
| 1957 | 3 |
| 1958 | 6 |
| 1959 | 1 |
| 1960 | 2 |
| 1961 | 4 |
| 1962 | 4 |
| 1965 | 9 |
| 1966 | 17 |
| 1967 | 31 |
| 1968 | 57 |
| 1969 | 46 |
| 1970 | 61 |
| 1971 | 75 |
| 1972 | 71 |
| 1973 | 79 |
| 1974 | 62 |
| 1975 | 98 |
| 1976 | 229 |
| 1977 | 184 |
| 1978 | 101 |
| 1979 | 98 |
| 1980 | 78 |
| 1981 | 62 |
| 1982 | 65 |
| 1983 | 76 |
| 1984 | 65 |
| 1985 | 105 |
| 1986 | 97 |
| 1987 | 83 |
| 1988 | 94 |
| 1989 | 109 |
| 1990 | 88 |
| 1991 | 100 |
| 1992 | 102 |
| 1993 | 133 |
| 1994 | 139 |
| 1995 | 154 |
| 1996 | 185 |
| 1997 | 255 |
| 1998 | 293 |
| 1999 | 309 |
| 2000 | 337 |
| 2001 | 376 |
| 2002 | 368 |
| 2003 | 461 |
| 2004 | 553 |
| 2005 | 583 |
| 2006 | 638 |
| 2007 | 688 |
| 2008 | 787 |
| 2009 | 835 |
| 2010 | 944 |
| 2011 | 1145 |
| 2012 | 1351 |
| 2013 | 1458 |
| 2014 | 1443 |
| 2015 | 1478 |
| 2016 | 1461 |
| 2017 | 1500 |
| 2018 | 1492 |
| 2019 | 1533 |
| 2020 | 1599 |
| 2021 | 1446 |
| 2022 | 1118 |
| 2023 | 994 |
| 2024 | 394 |