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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1948 | 1 |
| 1953 | 7 |
| 1954 | 6 |
| 1955 | 6 |
| 1956 | 11 |
| 1957 | 7 |
| 1958 | 3 |
| 1959 | 7 |
| 1960 | 5 |
| 1961 | 7 |
| 1962 | 7 |
| 1964 | 5 |
| 1965 | 32 |
| 1966 | 71 |
| 1967 | 141 |
| 1968 | 101 |
| 1969 | 138 |
| 1970 | 106 |
| 1971 | 123 |
| 1972 | 202 |
| 1973 | 173 |
| 1974 | 167 |
| 1975 | 195 |
| 1976 | 127 |
| 1977 | 140 |
| 1978 | 127 |
| 1979 | 110 |
| 1980 | 151 |
| 1981 | 149 |
| 1982 | 163 |
| 1983 | 155 |
| 1984 | 175 |
| 1985 | 162 |
| 1986 | 178 |
| 1987 | 208 |
| 1988 | 172 |
| 1989 | 212 |
| 1990 | 209 |
| 1991 | 240 |
| 1992 | 174 |
| 1993 | 196 |
| 1994 | 188 |
| 1995 | 220 |
| 1996 | 246 |
| 1997 | 312 |
| 1998 | 229 |
| 1999 | 241 |
| 2000 | 260 |
| 2001 | 308 |
| 2002 | 335 |
| 2003 | 374 |
| 2004 | 363 |
| 2005 | 359 |
| 2006 | 347 |
| 2007 | 384 |
| 2008 | 385 |
| 2009 | 425 |
| 2010 | 489 |
| 2011 | 538 |
| 2012 | 555 |
| 2013 | 580 |
| 2014 | 661 |
| 2015 | 593 |
| 2016 | 479 |
| 2017 | 432 |
| 2018 | 350 |
| 2019 | 291 |
| 2020 | 250 |
| 2021 | 182 |
| 2022 | 157 |
| 2023 | 142 |
| 2024 | 63 |