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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 1 |
| 1955 | 2 |
| 1956 | 4 |
| 1957 | 5 |
| 1958 | 6 |
| 1959 | 5 |
| 1960 | 8 |
| 1961 | 10 |
| 1962 | 1 |
| 1964 | 2 |
| 1965 | 13 |
| 1966 | 24 |
| 1967 | 48 |
| 1968 | 34 |
| 1969 | 40 |
| 1970 | 52 |
| 1971 | 51 |
| 1972 | 54 |
| 1973 | 50 |
| 1974 | 69 |
| 1975 | 68 |
| 1976 | 57 |
| 1977 | 84 |
| 1978 | 80 |
| 1979 | 79 |
| 1980 | 110 |
| 1981 | 122 |
| 1982 | 120 |
| 1983 | 131 |
| 1984 | 147 |
| 1985 | 168 |
| 1986 | 176 |
| 1987 | 160 |
| 1988 | 177 |
| 1989 | 225 |
| 1990 | 223 |
| 1991 | 189 |
| 1992 | 191 |
| 1993 | 186 |
| 1994 | 235 |
| 1995 | 241 |
| 1996 | 239 |
| 1997 | 241 |
| 1998 | 266 |
| 1999 | 276 |
| 2000 | 281 |
| 2001 | 272 |
| 2002 | 263 |
| 2003 | 305 |
| 2004 | 268 |
| 2005 | 338 |
| 2006 | 336 |
| 2007 | 351 |
| 2008 | 355 |
| 2009 | 362 |
| 2010 | 380 |
| 2011 | 422 |
| 2012 | 381 |
| 2013 | 381 |
| 2014 | 353 |
| 2015 | 334 |
| 2016 | 326 |
| 2017 | 295 |
| 2018 | 276 |
| 2019 | 266 |
| 2020 | 295 |
| 2021 | 260 |
| 2022 | 190 |
| 2023 | 141 |
| 2024 | 56 |