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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1951 | 6 |
| 1952 | 7 |
| 1953 | 29 |
| 1954 | 30 |
| 1955 | 37 |
| 1956 | 29 |
| 1957 | 53 |
| 1958 | 35 |
| 1959 | 48 |
| 1960 | 62 |
| 1961 | 96 |
| 1962 | 122 |
| 1963 | 239 |
| 1964 | 324 |
| 1965 | 221 |
| 1966 | 241 |
| 1967 | 296 |
| 1968 | 364 |
| 1969 | 406 |
| 1970 | 426 |
| 1971 | 520 |
| 1972 | 648 |
| 1973 | 552 |
| 1974 | 475 |
| 1975 | 447 |
| 1976 | 387 |
| 1977 | 356 |
| 1978 | 310 |
| 1979 | 295 |
| 1980 | 277 |
| 1981 | 211 |
| 1982 | 283 |
| 1983 | 248 |
| 1984 | 303 |
| 1985 | 274 |
| 1986 | 318 |
| 1987 | 340 |
| 1988 | 319 |
| 1989 | 381 |
| 1990 | 383 |
| 1991 | 331 |
| 1992 | 396 |
| 1993 | 310 |
| 1994 | 63 |
| 1995 | 99 |
| 1996 | 96 |
| 1997 | 92 |
| 1998 | 100 |
| 1999 | 107 |
| 2000 | 130 |
| 2001 | 118 |
| 2002 | 129 |
| 2003 | 173 |
| 2004 | 194 |
| 2005 | 196 |
| 2006 | 218 |
| 2007 | 193 |
| 2008 | 207 |
| 2009 | 189 |
| 2010 | 179 |
| 2011 | 169 |
| 2012 | 181 |
| 2013 | 180 |
| 2014 | 168 |
| 2015 | 150 |
| 2016 | 148 |
| 2017 | 149 |
| 2018 | 137 |
| 2019 | 134 |
| 2020 | 134 |
| 2021 | 116 |
| 2022 | 88 |
| 2023 | 76 |
| 2024 | 24 |