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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1952 | 4 |
| 1953 | 2 |
| 1954 | 6 |
| 1955 | 3 |
| 1956 | 1 |
| 1958 | 10 |
| 1959 | 4 |
| 1960 | 8 |
| 1961 | 6 |
| 1962 | 4 |
| 1965 | 7 |
| 1966 | 17 |
| 1967 | 12 |
| 1968 | 24 |
| 1969 | 33 |
| 1970 | 37 |
| 1971 | 40 |
| 1972 | 52 |
| 1973 | 47 |
| 1974 | 49 |
| 1975 | 44 |
| 1976 | 36 |
| 1977 | 45 |
| 1978 | 53 |
| 1979 | 77 |
| 1980 | 57 |
| 1981 | 51 |
| 1982 | 59 |
| 1983 | 65 |
| 1984 | 59 |
| 1985 | 74 |
| 1986 | 66 |
| 1987 | 79 |
| 1988 | 99 |
| 1989 | 104 |
| 1990 | 119 |
| 1991 | 111 |
| 1992 | 96 |
| 1993 | 93 |
| 1994 | 141 |
| 1995 | 120 |
| 1996 | 118 |
| 1997 | 95 |
| 1998 | 116 |
| 1999 | 112 |
| 2000 | 117 |
| 2001 | 121 |
| 2002 | 120 |
| 2003 | 139 |
| 2004 | 166 |
| 2005 | 175 |
| 2006 | 221 |
| 2007 | 248 |
| 2008 | 215 |
| 2009 | 242 |
| 2010 | 270 |
| 2011 | 273 |
| 2012 | 289 |
| 2013 | 285 |
| 2014 | 306 |
| 2015 | 341 |
| 2016 | 314 |
| 2017 | 442 |
| 2018 | 414 |
| 2019 | 444 |
| 2020 | 376 |
| 2021 | 277 |
| 2022 | 207 |
| 2023 | 165 |
| 2024 | 114 |