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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1953 | 1 |
| 1954 | 2 |
| 1956 | 4 |
| 1957 | 7 |
| 1958 | 3 |
| 1959 | 3 |
| 1960 | 3 |
| 1961 | 4 |
| 1962 | 4 |
| 1964 | 2 |
| 1965 | 7 |
| 1966 | 23 |
| 1967 | 29 |
| 1968 | 37 |
| 1969 | 40 |
| 1970 | 41 |
| 1971 | 51 |
| 1972 | 37 |
| 1973 | 46 |
| 1974 | 59 |
| 1975 | 50 |
| 1976 | 33 |
| 1977 | 45 |
| 1978 | 64 |
| 1979 | 70 |
| 1980 | 61 |
| 1981 | 45 |
| 1982 | 41 |
| 1983 | 56 |
| 1984 | 84 |
| 1985 | 82 |
| 1986 | 84 |
| 1987 | 60 |
| 1988 | 96 |
| 1989 | 100 |
| 1990 | 93 |
| 1991 | 83 |
| 1992 | 123 |
| 1993 | 133 |
| 1994 | 160 |
| 1995 | 144 |
| 1996 | 140 |
| 1997 | 123 |
| 1998 | 142 |
| 1999 | 146 |
| 2000 | 145 |
| 2001 | 162 |
| 2002 | 133 |
| 2003 | 166 |
| 2004 | 159 |
| 2005 | 209 |
| 2006 | 186 |
| 2007 | 177 |
| 2008 | 206 |
| 2009 | 224 |
| 2010 | 248 |
| 2011 | 308 |
| 2012 | 272 |
| 2013 | 310 |
| 2014 | 281 |
| 2015 | 303 |
| 2016 | 293 |
| 2017 | 293 |
| 2018 | 316 |
| 2019 | 335 |
| 2020 | 383 |
| 2021 | 381 |
| 2022 | 348 |
| 2023 | 340 |
| 2024 | 101 |