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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 2 |
| 1952 | 1 |
| 1953 | 3 |
| 1954 | 6 |
| 1955 | 6 |
| 1956 | 8 |
| 1957 | 14 |
| 1958 | 24 |
| 1959 | 20 |
| 1960 | 32 |
| 1961 | 30 |
| 1962 | 36 |
| 1963 | 120 |
| 1964 | 151 |
| 1965 | 133 |
| 1966 | 150 |
| 1967 | 169 |
| 1968 | 187 |
| 1969 | 234 |
| 1970 | 190 |
| 1971 | 247 |
| 1972 | 247 |
| 1973 | 275 |
| 1974 | 290 |
| 1975 | 273 |
| 1976 | 196 |
| 1977 | 225 |
| 1978 | 208 |
| 1979 | 228 |
| 1980 | 275 |
| 1981 | 278 |
| 1982 | 305 |
| 1983 | 287 |
| 1984 | 297 |
| 1985 | 360 |
| 1986 | 282 |
| 1987 | 268 |
| 1988 | 289 |
| 1989 | 307 |
| 1990 | 303 |
| 1991 | 246 |
| 1992 | 255 |
| 1993 | 262 |
| 1994 | 293 |
| 1995 | 290 |
| 1996 | 284 |
| 1997 | 250 |
| 1998 | 261 |
| 1999 | 288 |
| 2000 | 316 |
| 2001 | 318 |
| 2002 | 345 |
| 2003 | 324 |
| 2004 | 352 |
| 2005 | 363 |
| 2006 | 327 |
| 2007 | 292 |
| 2008 | 322 |
| 2009 | 277 |
| 2010 | 285 |
| 2011 | 289 |
| 2012 | 279 |
| 2013 | 307 |
| 2014 | 303 |
| 2015 | 281 |
| 2016 | 271 |
| 2017 | 252 |
| 2018 | 259 |
| 2019 | 281 |
| 2020 | 256 |
| 2021 | 234 |
| 2022 | 238 |
| 2023 | 26 |