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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 1 |
| 1951 | 14 |
| 1952 | 18 |
| 1953 | 27 |
| 1954 | 28 |
| 1955 | 25 |
| 1956 | 38 |
| 1957 | 24 |
| 1958 | 24 |
| 1959 | 43 |
| 1960 | 49 |
| 1961 | 48 |
| 1962 | 24 |
| 1963 | 2 |
| 1964 | 1 |
| 1965 | 43 |
| 1966 | 92 |
| 1967 | 116 |
| 1968 | 137 |
| 1969 | 137 |
| 1970 | 156 |
| 1971 | 155 |
| 1972 | 141 |
| 1973 | 139 |
| 1974 | 148 |
| 1975 | 132 |
| 1976 | 172 |
| 1977 | 181 |
| 1978 | 157 |
| 1979 | 168 |
| 1980 | 176 |
| 1981 | 174 |
| 1982 | 188 |
| 1983 | 228 |
| 1984 | 230 |
| 1985 | 237 |
| 1986 | 218 |
| 1987 | 238 |
| 1988 | 281 |
| 1989 | 304 |
| 1990 | 270 |
| 1991 | 254 |
| 1992 | 296 |
| 1993 | 298 |
| 1994 | 286 |
| 1995 | 369 |
| 1996 | 373 |
| 1997 | 364 |
| 1998 | 432 |
| 1999 | 436 |
| 2000 | 430 |
| 2001 | 513 |
| 2002 | 506 |
| 2003 | 534 |
| 2004 | 570 |
| 2005 | 725 |
| 2006 | 746 |
| 2007 | 759 |
| 2008 | 811 |
| 2009 | 865 |
| 2010 | 965 |
| 2011 | 1097 |
| 2012 | 963 |
| 2013 | 1128 |
| 2014 | 1094 |
| 2015 | 989 |
| 2016 | 1060 |
| 2017 | 1024 |
| 2018 | 1018 |
| 2019 | 1072 |
| 2020 | 1289 |
| 2021 | 1477 |
| 2022 | 2085 |
| 2023 | 2020 |
| 2024 | 822 |