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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 3 |
| 1948 | 6 |
| 1949 | 5 |
| 1950 | 4 |
| 1951 | 3 |
| 1952 | 1 |
| 1953 | 4 |
| 1954 | 6 |
| 1955 | 1 |
| 1956 | 5 |
| 1957 | 1 |
| 1958 | 4 |
| 1959 | 2 |
| 1960 | 3 |
| 1961 | 2 |
| 1962 | 5 |
| 1963 | 3 |
| 1964 | 3 |
| 1965 | 7 |
| 1967 | 1 |
| 1971 | 4 |
| 1972 | 12 |
| 1973 | 42 |
| 1974 | 58 |
| 1975 | 74 |
| 1976 | 64 |
| 1977 | 56 |
| 1978 | 76 |
| 1979 | 118 |
| 1980 | 109 |
| 1981 | 130 |
| 1982 | 141 |
| 1983 | 124 |
| 1984 | 126 |
| 1985 | 167 |
| 1986 | 151 |
| 1987 | 163 |
| 1988 | 161 |
| 1989 | 189 |
| 1990 | 184 |
| 1991 | 173 |
| 1992 | 171 |
| 1993 | 172 |
| 1994 | 173 |
| 1995 | 177 |
| 1996 | 186 |
| 1997 | 175 |
| 1998 | 198 |
| 1999 | 156 |
| 2000 | 206 |
| 2001 | 181 |
| 2002 | 156 |
| 2003 | 193 |
| 2004 | 196 |
| 2005 | 204 |
| 2006 | 224 |
| 2007 | 243 |
| 2008 | 255 |
| 2009 | 275 |
| 2010 | 277 |
| 2011 | 277 |
| 2012 | 336 |
| 2013 | 309 |
| 2014 | 300 |
| 2015 | 330 |
| 2016 | 388 |
| 2017 | 314 |
| 2018 | 364 |
| 2019 | 348 |
| 2020 | 307 |
| 2021 | 238 |
| 2022 | 158 |
| 2023 | 132 |
| 2024 | 43 |