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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 4 |
| 1952 | 6 |
| 1953 | 1 |
| 1954 | 1 |
| 1956 | 2 |
| 1957 | 1 |
| 1958 | 1 |
| 1959 | 2 |
| 1960 | 4 |
| 1961 | 2 |
| 1962 | 1 |
| 1965 | 18 |
| 1966 | 34 |
| 1967 | 37 |
| 1968 | 24 |
| 1969 | 45 |
| 1970 | 45 |
| 1971 | 37 |
| 1972 | 28 |
| 1973 | 54 |
| 1974 | 58 |
| 1975 | 52 |
| 1976 | 87 |
| 1977 | 74 |
| 1978 | 90 |
| 1979 | 79 |
| 1980 | 88 |
| 1981 | 72 |
| 1982 | 80 |
| 1983 | 88 |
| 1984 | 88 |
| 1985 | 102 |
| 1986 | 104 |
| 1987 | 107 |
| 1988 | 108 |
| 1989 | 117 |
| 1990 | 176 |
| 1991 | 195 |
| 1992 | 148 |
| 1993 | 159 |
| 1994 | 169 |
| 1995 | 145 |
| 1996 | 188 |
| 1997 | 151 |
| 1998 | 183 |
| 1999 | 172 |
| 2000 | 205 |
| 2001 | 222 |
| 2002 | 275 |
| 2003 | 367 |
| 2004 | 415 |
| 2005 | 433 |
| 2006 | 510 |
| 2007 | 571 |
| 2008 | 755 |
| 2009 | 685 |
| 2010 | 728 |
| 2011 | 816 |
| 2012 | 963 |
| 2013 | 1058 |
| 2014 | 1110 |
| 2015 | 1194 |
| 2016 | 1198 |
| 2017 | 1160 |
| 2018 | 1164 |
| 2019 | 1291 |
| 2020 | 1795 |
| 2021 | 2185 |
| 2022 | 2717 |
| 2023 | 2504 |
| 2024 | 2254 |
| 2025 | 1315 |