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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 4 |
| 1964 | 1 |
| 1965 | 21 |
| 1966 | 33 |
| 1967 | 45 |
| 1968 | 44 |
| 1969 | 54 |
| 1970 | 53 |
| 1971 | 52 |
| 1972 | 72 |
| 1973 | 83 |
| 1974 | 84 |
| 1975 | 69 |
| 1976 | 83 |
| 1977 | 88 |
| 1978 | 86 |
| 1979 | 111 |
| 1980 | 108 |
| 1981 | 106 |
| 1982 | 115 |
| 1983 | 143 |
| 1984 | 136 |
| 1985 | 146 |
| 1986 | 142 |
| 1987 | 150 |
| 1988 | 137 |
| 1989 | 175 |
| 1990 | 161 |
| 1991 | 187 |
| 1992 | 203 |
| 1993 | 185 |
| 1994 | 232 |
| 1995 | 187 |
| 1996 | 161 |
| 1997 | 163 |
| 1998 | 135 |
| 1999 | 152 |
| 2000 | 137 |
| 2001 | 150 |
| 2002 | 139 |
| 2003 | 117 |
| 2004 | 110 |
| 2005 | 108 |
| 2006 | 93 |
| 2007 | 92 |
| 2008 | 115 |
| 2009 | 88 |
| 2010 | 67 |
| 2011 | 88 |
| 2012 | 69 |
| 2013 | 58 |
| 2014 | 53 |
| 2015 | 57 |
| 2016 | 57 |
| 2017 | 56 |
| 2018 | 55 |
| 2019 | 43 |
| 2020 | 49 |
| 2021 | 45 |
| 2022 | 66 |
| 2023 | 44 |
| 2024 | 54 |
| 2025 | 43 |
| 2026 | 22 |