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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1955 | 1 |
| 1957 | 2 |
| 1958 | 3 |
| 1959 | 3 |
| 1960 | 5 |
| 1961 | 4 |
| 1962 | 2 |
| 1965 | 13 |
| 1966 | 23 |
| 1967 | 25 |
| 1968 | 31 |
| 1969 | 30 |
| 1970 | 50 |
| 1971 | 46 |
| 1972 | 42 |
| 1973 | 48 |
| 1974 | 49 |
| 1975 | 38 |
| 1976 | 28 |
| 1977 | 36 |
| 1978 | 32 |
| 1979 | 25 |
| 1980 | 31 |
| 1981 | 44 |
| 1982 | 54 |
| 1983 | 67 |
| 1984 | 56 |
| 1985 | 65 |
| 1986 | 77 |
| 1987 | 62 |
| 1988 | 101 |
| 1989 | 147 |
| 1990 | 214 |
| 1991 | 234 |
| 1992 | 191 |
| 1993 | 148 |
| 1994 | 132 |
| 1995 | 146 |
| 1996 | 119 |
| 1997 | 102 |
| 1998 | 84 |
| 1999 | 80 |
| 2000 | 78 |
| 2001 | 84 |
| 2002 | 65 |
| 2003 | 57 |
| 2004 | 88 |
| 2005 | 90 |
| 2006 | 75 |
| 2007 | 99 |
| 2008 | 103 |
| 2009 | 98 |
| 2010 | 96 |
| 2011 | 110 |
| 2012 | 134 |
| 2013 | 109 |
| 2014 | 105 |
| 2015 | 91 |
| 2016 | 89 |
| 2017 | 97 |
| 2018 | 98 |
| 2019 | 104 |
| 2020 | 121 |
| 2021 | 95 |
| 2022 | 116 |
| 2023 | 89 |
| 2024 | 85 |