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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 2 |
| 1952 | 10 |
| 1953 | 6 |
| 1954 | 6 |
| 1955 | 9 |
| 1956 | 7 |
| 1957 | 9 |
| 1958 | 9 |
| 1959 | 7 |
| 1964 | 1 |
| 1965 | 17 |
| 1966 | 42 |
| 1967 | 47 |
| 1968 | 46 |
| 1969 | 72 |
| 1970 | 94 |
| 1971 | 97 |
| 1972 | 103 |
| 1973 | 145 |
| 1974 | 155 |
| 1975 | 152 |
| 1976 | 125 |
| 1977 | 99 |
| 1978 | 111 |
| 1979 | 118 |
| 1980 | 125 |
| 1981 | 140 |
| 1982 | 135 |
| 1983 | 150 |
| 1984 | 149 |
| 1985 | 123 |
| 1986 | 145 |
| 1987 | 159 |
| 1988 | 164 |
| 1989 | 192 |
| 1990 | 180 |
| 1991 | 160 |
| 1992 | 171 |
| 1993 | 223 |
| 1994 | 219 |
| 1995 | 238 |
| 1996 | 210 |
| 1997 | 235 |
| 1998 | 213 |
| 1999 | 194 |
| 2000 | 234 |
| 2001 | 201 |
| 2002 | 211 |
| 2003 | 253 |
| 2004 | 235 |
| 2005 | 281 |
| 2006 | 334 |
| 2007 | 335 |
| 2008 | 370 |
| 2009 | 385 |
| 2010 | 427 |
| 2011 | 424 |
| 2012 | 442 |
| 2013 | 421 |
| 2014 | 473 |
| 2015 | 492 |
| 2016 | 544 |
| 2017 | 560 |
| 2018 | 558 |
| 2019 | 573 |
| 2020 | 437 |
| 2021 | 266 |
| 2022 | 40 |
| 2023 | 26 |
| 2024 | 494 |
| 2025 | 368 |