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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 2 |
| 1948 | 1 |
| 1952 | 7 |
| 1953 | 1 |
| 1955 | 1 |
| 1956 | 5 |
| 1957 | 3 |
| 1958 | 6 |
| 1959 | 1 |
| 1960 | 4 |
| 1961 | 3 |
| 1962 | 3 |
| 1965 | 3 |
| 1966 | 23 |
| 1967 | 23 |
| 1968 | 48 |
| 1969 | 45 |
| 1970 | 32 |
| 1971 | 69 |
| 1972 | 54 |
| 1973 | 52 |
| 1974 | 63 |
| 1975 | 40 |
| 1976 | 42 |
| 1977 | 45 |
| 1978 | 42 |
| 1979 | 33 |
| 1980 | 28 |
| 1981 | 52 |
| 1982 | 44 |
| 1983 | 39 |
| 1984 | 37 |
| 1985 | 58 |
| 1986 | 52 |
| 1987 | 41 |
| 1988 | 52 |
| 1989 | 48 |
| 1990 | 46 |
| 1991 | 51 |
| 1992 | 50 |
| 1993 | 46 |
| 1994 | 59 |
| 1995 | 58 |
| 1996 | 55 |
| 1997 | 79 |
| 1998 | 70 |
| 1999 | 85 |
| 2000 | 101 |
| 2001 | 142 |
| 2002 | 132 |
| 2003 | 152 |
| 2004 | 147 |
| 2005 | 193 |
| 2006 | 210 |
| 2007 | 251 |
| 2008 | 231 |
| 2009 | 221 |
| 2010 | 198 |
| 2011 | 213 |
| 2012 | 245 |
| 2013 | 229 |
| 2014 | 259 |
| 2015 | 282 |
| 2016 | 318 |
| 2017 | 342 |
| 2018 | 320 |
| 2019 | 335 |
| 2020 | 315 |
| 2021 | 193 |
| 2022 | 67 |
| 2023 | 53 |
| 2024 | 90 |