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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 4 |
| 1952 | 24 |
| 1953 | 22 |
| 1954 | 30 |
| 1955 | 38 |
| 1956 | 39 |
| 1957 | 50 |
| 1958 | 51 |
| 1959 | 42 |
| 1960 | 33 |
| 1961 | 50 |
| 1962 | 46 |
| 1963 | 1 |
| 1964 | 5 |
| 1965 | 10 |
| 1966 | 178 |
| 1967 | 305 |
| 1968 | 402 |
| 1969 | 465 |
| 1970 | 467 |
| 1971 | 493 |
| 1972 | 488 |
| 1973 | 526 |
| 1974 | 583 |
| 1975 | 430 |
| 1976 | 290 |
| 1977 | 276 |
| 1978 | 257 |
| 1979 | 286 |
| 1980 | 275 |
| 1981 | 307 |
| 1982 | 281 |
| 1983 | 327 |
| 1984 | 325 |
| 1985 | 363 |
| 1986 | 323 |
| 1987 | 293 |
| 1988 | 314 |
| 1989 | 327 |
| 1990 | 324 |
| 1991 | 272 |
| 1992 | 274 |
| 1993 | 249 |
| 1994 | 234 |
| 1995 | 207 |
| 1996 | 202 |
| 1997 | 199 |
| 1998 | 178 |
| 1999 | 172 |
| 2000 | 177 |
| 2001 | 159 |
| 2002 | 144 |
| 2003 | 154 |
| 2004 | 150 |
| 2005 | 149 |
| 2006 | 204 |
| 2007 | 224 |
| 2008 | 191 |
| 2009 | 214 |
| 2010 | 226 |
| 2011 | 242 |
| 2012 | 256 |
| 2013 | 275 |
| 2014 | 264 |
| 2015 | 258 |
| 2016 | 238 |
| 2017 | 221 |
| 2018 | 206 |
| 2019 | 221 |
| 2020 | 180 |
| 2021 | 89 |
| 2022 | 16 |
| 2023 | 5 |
| 2024 | 14 |