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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1954 | 1 |
| 1958 | 3 |
| 1959 | 2 |
| 1960 | 4 |
| 1962 | 6 |
| 1963 | 3 |
| 1964 | 8 |
| 1965 | 7 |
| 1966 | 5 |
| 1967 | 19 |
| 1968 | 13 |
| 1969 | 12 |
| 1970 | 14 |
| 1971 | 10 |
| 1972 | 13 |
| 1973 | 12 |
| 1974 | 24 |
| 1975 | 14 |
| 1976 | 20 |
| 1977 | 23 |
| 1978 | 40 |
| 1979 | 36 |
| 1980 | 50 |
| 1981 | 38 |
| 1982 | 40 |
| 1983 | 50 |
| 1984 | 70 |
| 1985 | 56 |
| 1986 | 63 |
| 1987 | 52 |
| 1988 | 55 |
| 1989 | 57 |
| 1990 | 46 |
| 1991 | 57 |
| 1992 | 56 |
| 1993 | 66 |
| 1994 | 82 |
| 1995 | 83 |
| 1996 | 68 |
| 1997 | 102 |
| 1998 | 122 |
| 1999 | 101 |
| 2000 | 101 |
| 2001 | 90 |
| 2002 | 107 |
| 2003 | 108 |
| 2004 | 91 |
| 2005 | 121 |
| 2006 | 126 |
| 2007 | 129 |
| 2008 | 134 |
| 2009 | 153 |
| 2010 | 134 |
| 2011 | 159 |
| 2012 | 210 |
| 2013 | 203 |
| 2014 | 190 |
| 2015 | 167 |
| 2016 | 179 |
| 2017 | 174 |
| 2018 | 224 |
| 2019 | 274 |
| 2020 | 303 |
| 2021 | 309 |
| 2022 | 284 |
| 2023 | 276 |
| 2024 | 294 |
| 2025 | 284 |
| 2026 | 12 |