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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 1 |
| 1952 | 4 |
| 1954 | 1 |
| 1955 | 1 |
| 1956 | 3 |
| 1957 | 4 |
| 1958 | 6 |
| 1959 | 10 |
| 1960 | 3 |
| 1961 | 14 |
| 1962 | 17 |
| 1963 | 12 |
| 1964 | 21 |
| 1965 | 17 |
| 1966 | 26 |
| 1967 | 24 |
| 1968 | 26 |
| 1969 | 43 |
| 1970 | 44 |
| 1971 | 41 |
| 1972 | 32 |
| 1973 | 49 |
| 1974 | 53 |
| 1975 | 57 |
| 1976 | 54 |
| 1977 | 63 |
| 1978 | 80 |
| 1979 | 76 |
| 1980 | 92 |
| 1981 | 110 |
| 1982 | 147 |
| 1983 | 161 |
| 1984 | 163 |
| 1985 | 145 |
| 1986 | 136 |
| 1987 | 183 |
| 1988 | 166 |
| 1989 | 208 |
| 1990 | 195 |
| 1991 | 180 |
| 1992 | 187 |
| 1993 | 208 |
| 1994 | 215 |
| 1995 | 228 |
| 1996 | 247 |
| 1997 | 224 |
| 1998 | 216 |
| 1999 | 226 |
| 2000 | 298 |
| 2001 | 287 |
| 2002 | 300 |
| 2003 | 287 |
| 2004 | 296 |
| 2005 | 328 |
| 2006 | 330 |
| 2007 | 327 |
| 2008 | 363 |
| 2009 | 373 |
| 2010 | 345 |
| 2011 | 456 |
| 2012 | 504 |
| 2013 | 537 |
| 2014 | 520 |
| 2015 | 529 |
| 2016 | 584 |
| 2017 | 602 |
| 2018 | 703 |
| 2019 | 740 |
| 2020 | 891 |
| 2021 | 998 |
| 2022 | 894 |
| 2023 | 678 |