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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 1 |
| 1961 | 3 |
| 1962 | 2 |
| 1963 | 1 |
| 1964 | 1 |
| 1965 | 5 |
| 1966 | 10 |
| 1967 | 15 |
| 1968 | 23 |
| 1969 | 20 |
| 1970 | 32 |
| 1971 | 36 |
| 1972 | 54 |
| 1973 | 58 |
| 1974 | 69 |
| 1975 | 78 |
| 1976 | 81 |
| 1977 | 72 |
| 1978 | 82 |
| 1979 | 75 |
| 1980 | 82 |
| 1981 | 88 |
| 1982 | 111 |
| 1983 | 100 |
| 1984 | 95 |
| 1985 | 146 |
| 1986 | 117 |
| 1987 | 122 |
| 1988 | 119 |
| 1989 | 157 |
| 1990 | 153 |
| 1991 | 181 |
| 1992 | 193 |
| 1993 | 182 |
| 1994 | 212 |
| 1995 | 215 |
| 1996 | 153 |
| 1997 | 219 |
| 1998 | 175 |
| 1999 | 149 |
| 2000 | 180 |
| 2001 | 200 |
| 2002 | 228 |
| 2003 | 276 |
| 2004 | 267 |
| 2005 | 237 |
| 2006 | 242 |
| 2007 | 267 |
| 2008 | 295 |
| 2009 | 268 |
| 2010 | 301 |
| 2011 | 326 |
| 2012 | 311 |
| 2013 | 359 |
| 2014 | 296 |
| 2015 | 322 |
| 2016 | 318 |
| 2017 | 263 |
| 2018 | 268 |
| 2019 | 266 |
| 2020 | 276 |
| 2021 | 246 |
| 2022 | 210 |
| 2023 | 202 |
| 2024 | 126 |