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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 |
| 1950 | 1 |
| 1951 | 19 |
| 1952 | 43 |
| 1953 | 45 |
| 1954 | 44 |
| 1955 | 48 |
| 1956 | 26 |
| 1957 | 49 |
| 1958 | 34 |
| 1959 | 13 |
| 1963 | 5 |
| 1964 | 25 |
| 1965 | 54 |
| 1966 | 80 |
| 1967 | 99 |
| 1968 | 98 |
| 1969 | 109 |
| 1970 | 96 |
| 1971 | 137 |
| 1972 | 102 |
| 1973 | 148 |
| 1974 | 145 |
| 1975 | 120 |
| 1976 | 96 |
| 1977 | 99 |
| 1978 | 92 |
| 1979 | 110 |
| 1980 | 105 |
| 1981 | 121 |
| 1982 | 139 |
| 1983 | 105 |
| 1984 | 113 |
| 1985 | 108 |
| 1986 | 105 |
| 1987 | 98 |
| 1988 | 106 |
| 1989 | 118 |
| 1990 | 94 |
| 1991 | 118 |
| 1992 | 141 |
| 1993 | 136 |
| 1994 | 165 |
| 1995 | 165 |
| 1996 | 145 |
| 1997 | 148 |
| 1998 | 167 |
| 1999 | 167 |
| 2000 | 214 |
| 2001 | 239 |
| 2002 | 268 |
| 2003 | 301 |
| 2004 | 291 |
| 2005 | 318 |
| 2006 | 282 |
| 2007 | 255 |
| 2008 | 296 |
| 2009 | 319 |
| 2010 | 259 |
| 2011 | 304 |
| 2012 | 311 |
| 2013 | 340 |
| 2014 | 329 |
| 2015 | 304 |
| 2016 | 280 |
| 2017 | 225 |
| 2018 | 266 |
| 2019 | 245 |
| 2020 | 278 |
| 2021 | 232 |
| 2022 | 217 |
| 2023 | 136 |
| 2024 | 48 |