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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1956 | 1 |
| 1957 | 1 |
| 1959 | 1 |
| 1963 | 1 |
| 1964 | 1 |
| 1965 | 3 |
| 1966 | 13 |
| 1967 | 12 |
| 1968 | 14 |
| 1969 | 11 |
| 1970 | 20 |
| 1971 | 29 |
| 1972 | 19 |
| 1973 | 35 |
| 1974 | 45 |
| 1975 | 58 |
| 1976 | 50 |
| 1977 | 46 |
| 1978 | 43 |
| 1979 | 54 |
| 1980 | 56 |
| 1981 | 71 |
| 1982 | 85 |
| 1983 | 97 |
| 1984 | 109 |
| 1985 | 119 |
| 1986 | 137 |
| 1987 | 109 |
| 1988 | 141 |
| 1989 | 146 |
| 1990 | 131 |
| 1991 | 156 |
| 1992 | 155 |
| 1993 | 154 |
| 1994 | 205 |
| 1995 | 182 |
| 1996 | 203 |
| 1997 | 191 |
| 1998 | 200 |
| 1999 | 227 |
| 2000 | 209 |
| 2001 | 183 |
| 2002 | 215 |
| 2003 | 238 |
| 2004 | 259 |
| 2005 | 282 |
| 2006 | 296 |
| 2007 | 313 |
| 2008 | 335 |
| 2009 | 358 |
| 2010 | 364 |
| 2011 | 389 |
| 2012 | 469 |
| 2013 | 505 |
| 2014 | 518 |
| 2015 | 523 |
| 2016 | 556 |
| 2017 | 514 |
| 2018 | 527 |
| 2019 | 602 |
| 2020 | 592 |
| 2021 | 628 |
| 2022 | 633 |
| 2023 | 583 |
| 2024 | 232 |