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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 3 |
| 1953 | 4 |
| 1954 | 4 |
| 1955 | 4 |
| 1956 | 6 |
| 1957 | 11 |
| 1958 | 7 |
| 1959 | 5 |
| 1960 | 16 |
| 1961 | 20 |
| 1962 | 11 |
| 1965 | 23 |
| 1966 | 42 |
| 1967 | 80 |
| 1968 | 116 |
| 1969 | 86 |
| 1970 | 111 |
| 1971 | 134 |
| 1972 | 150 |
| 1973 | 158 |
| 1974 | 161 |
| 1975 | 171 |
| 1976 | 147 |
| 1977 | 150 |
| 1978 | 141 |
| 1979 | 146 |
| 1980 | 124 |
| 1981 | 139 |
| 1982 | 142 |
| 1983 | 153 |
| 1984 | 190 |
| 1985 | 188 |
| 1986 | 160 |
| 1987 | 172 |
| 1988 | 190 |
| 1989 | 179 |
| 1990 | 171 |
| 1991 | 189 |
| 1992 | 193 |
| 1993 | 170 |
| 1994 | 164 |
| 1995 | 208 |
| 1996 | 157 |
| 1997 | 209 |
| 1998 | 185 |
| 1999 | 203 |
| 2000 | 223 |
| 2001 | 260 |
| 2002 | 272 |
| 2003 | 264 |
| 2004 | 264 |
| 2005 | 319 |
| 2006 | 358 |
| 2007 | 359 |
| 2008 | 398 |
| 2009 | 453 |
| 2010 | 446 |
| 2011 | 459 |
| 2012 | 464 |
| 2013 | 553 |
| 2014 | 506 |
| 2015 | 500 |
| 2016 | 499 |
| 2017 | 502 |
| 2018 | 545 |
| 2019 | 457 |
| 2020 | 483 |
| 2021 | 300 |
| 2022 | 140 |
| 2023 | 118 |
| 2024 | 36 |