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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 1 |
| 1956 | 3 |
| 1957 | 1 |
| 1958 | 2 |
| 1959 | 2 |
| 1960 | 2 |
| 1961 | 5 |
| 1962 | 10 |
| 1963 | 16 |
| 1964 | 15 |
| 1965 | 10 |
| 1966 | 18 |
| 1967 | 37 |
| 1968 | 25 |
| 1969 | 32 |
| 1970 | 27 |
| 1971 | 31 |
| 1972 | 37 |
| 1973 | 46 |
| 1974 | 39 |
| 1975 | 35 |
| 1976 | 29 |
| 1977 | 33 |
| 1978 | 36 |
| 1979 | 43 |
| 1980 | 43 |
| 1981 | 52 |
| 1982 | 44 |
| 1983 | 58 |
| 1984 | 75 |
| 1985 | 96 |
| 1986 | 97 |
| 1987 | 101 |
| 1988 | 103 |
| 1989 | 142 |
| 1990 | 141 |
| 1991 | 115 |
| 1992 | 156 |
| 1993 | 152 |
| 1994 | 146 |
| 1995 | 154 |
| 1996 | 158 |
| 1997 | 152 |
| 1998 | 210 |
| 1999 | 213 |
| 2000 | 218 |
| 2001 | 223 |
| 2002 | 224 |
| 2003 | 244 |
| 2004 | 265 |
| 2005 | 293 |
| 2006 | 270 |
| 2007 | 298 |
| 2008 | 291 |
| 2009 | 266 |
| 2010 | 281 |
| 2011 | 318 |
| 2012 | 326 |
| 2013 | 339 |
| 2014 | 314 |
| 2015 | 339 |
| 2016 | 372 |
| 2017 | 402 |
| 2018 | 340 |
| 2019 | 358 |
| 2020 | 436 |
| 2021 | 530 |
| 2022 | 421 |
| 2023 | 1 |