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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 32 |
| 1960 | 41 |
| 1961 | 61 |
| 1962 | 66 |
| 1963 | 37 |
| 1964 | 73 |
| 1965 | 86 |
| 1966 | 115 |
| 1967 | 140 |
| 1968 | 145 |
| 1969 | 150 |
| 1970 | 200 |
| 1971 | 190 |
| 1972 | 203 |
| 1973 | 229 |
| 1974 | 202 |
| 1975 | 247 |
| 1976 | 240 |
| 1977 | 247 |
| 1978 | 264 |
| 1979 | 230 |
| 1980 | 233 |
| 1981 | 268 |
| 1982 | 250 |
| 1983 | 263 |
| 1984 | 239 |
| 1985 | 252 |
| 1986 | 270 |
| 1987 | 264 |
| 1988 | 211 |
| 1989 | 155 |
| 1990 | 137 |
| 1991 | 163 |
| 1992 | 171 |
| 1993 | 207 |
| 1994 | 210 |
| 1995 | 156 |
| 1996 | 199 |
| 1997 | 335 |
| 1998 | 266 |
| 1999 | 266 |
| 2000 | 278 |
| 2001 | 264 |
| 2002 | 216 |
| 2003 | 321 |
| 2004 | 264 |
| 2005 | 362 |
| 2006 | 442 |
| 2007 | 436 |
| 2008 | 458 |
| 2009 | 439 |
| 2010 | 397 |
| 2011 | 409 |
| 2012 | 466 |
| 2013 | 377 |
| 2014 | 343 |
| 2015 | 352 |
| 2016 | 345 |
| 2017 | 300 |
| 2018 | 270 |
| 2019 | 289 |
| 2020 | 347 |
| 2021 | 345 |
| 2022 | 311 |
| 2023 | 301 |
| 2024 | 151 |