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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 2 |
| 1951 | 1 |
| 1952 | 4 |
| 1954 | 2 |
| 1955 | 6 |
| 1956 | 4 |
| 1957 | 3 |
| 1958 | 4 |
| 1959 | 1 |
| 1960 | 2 |
| 1961 | 11 |
| 1962 | 13 |
| 1963 | 19 |
| 1964 | 7 |
| 1965 | 11 |
| 1966 | 14 |
| 1967 | 17 |
| 1968 | 21 |
| 1969 | 32 |
| 1970 | 27 |
| 1971 | 23 |
| 1972 | 28 |
| 1973 | 31 |
| 1974 | 20 |
| 1975 | 16 |
| 1976 | 24 |
| 1977 | 32 |
| 1978 | 44 |
| 1979 | 43 |
| 1980 | 50 |
| 1981 | 51 |
| 1982 | 67 |
| 1983 | 80 |
| 1984 | 84 |
| 1985 | 101 |
| 1986 | 80 |
| 1987 | 125 |
| 1988 | 122 |
| 1989 | 108 |
| 1990 | 101 |
| 1991 | 103 |
| 1992 | 114 |
| 1993 | 101 |
| 1994 | 123 |
| 1995 | 114 |
| 1996 | 118 |
| 1997 | 121 |
| 1998 | 198 |
| 1999 | 153 |
| 2000 | 195 |
| 2001 | 203 |
| 2002 | 210 |
| 2003 | 184 |
| 2004 | 226 |
| 2005 | 256 |
| 2006 | 231 |
| 2007 | 236 |
| 2008 | 268 |
| 2009 | 298 |
| 2010 | 296 |
| 2011 | 330 |
| 2012 | 360 |
| 2013 | 371 |
| 2014 | 380 |
| 2015 | 455 |
| 2016 | 476 |
| 2017 | 472 |
| 2018 | 464 |
| 2019 | 485 |
| 2020 | 541 |
| 2021 | 623 |
| 2022 | 547 |
| 2023 | 513 |
| 2024 | 546 |
| 2025 | 7 |