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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 3 |
| 1955 | 3 |
| 1956 | 1 |
| 1958 | 2 |
| 1960 | 3 |
| 1961 | 1 |
| 1962 | 1 |
| 1964 | 1 |
| 1965 | 8 |
| 1966 | 20 |
| 1967 | 54 |
| 1968 | 46 |
| 1969 | 66 |
| 1970 | 86 |
| 1971 | 144 |
| 1972 | 168 |
| 1973 | 187 |
| 1974 | 168 |
| 1975 | 193 |
| 1976 | 194 |
| 1977 | 201 |
| 1978 | 240 |
| 1979 | 236 |
| 1980 | 259 |
| 1981 | 192 |
| 1982 | 184 |
| 1983 | 204 |
| 1984 | 209 |
| 1985 | 216 |
| 1986 | 208 |
| 1987 | 229 |
| 1988 | 214 |
| 1989 | 197 |
| 1990 | 223 |
| 1991 | 232 |
| 1992 | 255 |
| 1993 | 316 |
| 1994 | 339 |
| 1995 | 352 |
| 1996 | 435 |
| 1997 | 364 |
| 1998 | 461 |
| 1999 | 566 |
| 2000 | 673 |
| 2001 | 703 |
| 2002 | 652 |
| 2003 | 733 |
| 2004 | 737 |
| 2005 | 796 |
| 2006 | 865 |
| 2007 | 896 |
| 2008 | 939 |
| 2009 | 878 |
| 2010 | 921 |
| 2011 | 940 |
| 2012 | 1027 |
| 2013 | 984 |
| 2014 | 947 |
| 2015 | 1086 |
| 2016 | 926 |
| 2017 | 864 |
| 2018 | 881 |
| 2019 | 928 |
| 2020 | 705 |
| 2021 | 459 |
| 2022 | 292 |
| 2023 | 238 |
| 2024 | 63 |