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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1951 | 4 |
| 1952 | 19 |
| 1953 | 17 |
| 1954 | 16 |
| 1955 | 21 |
| 1956 | 49 |
| 1957 | 82 |
| 1958 | 91 |
| 1959 | 59 |
| 1960 | 80 |
| 1961 | 86 |
| 1962 | 67 |
| 1964 | 1 |
| 1965 | 43 |
| 1966 | 127 |
| 1967 | 191 |
| 1968 | 190 |
| 1969 | 186 |
| 1970 | 194 |
| 1971 | 196 |
| 1972 | 272 |
| 1973 | 232 |
| 1974 | 243 |
| 1975 | 283 |
| 1976 | 282 |
| 1977 | 312 |
| 1978 | 287 |
| 1979 | 281 |
| 1980 | 340 |
| 1981 | 348 |
| 1982 | 348 |
| 1983 | 356 |
| 1984 | 375 |
| 1985 | 423 |
| 1986 | 406 |
| 1987 | 449 |
| 1988 | 439 |
| 1989 | 526 |
| 1990 | 516 |
| 1991 | 497 |
| 1992 | 511 |
| 1993 | 581 |
| 1994 | 540 |
| 1995 | 625 |
| 1996 | 584 |
| 1997 | 622 |
| 1998 | 640 |
| 1999 | 638 |
| 2000 | 755 |
| 2001 | 745 |
| 2002 | 771 |
| 2003 | 875 |
| 2004 | 934 |
| 2005 | 1077 |
| 2006 | 1130 |
| 2007 | 1182 |
| 2008 | 1179 |
| 2009 | 1255 |
| 2010 | 1162 |
| 2011 | 1281 |
| 2012 | 1377 |
| 2013 | 1570 |
| 2014 | 1560 |
| 2015 | 1567 |
| 2016 | 1328 |
| 2017 | 1257 |
| 2018 | 1197 |
| 2019 | 1295 |
| 2020 | 1138 |
| 2021 | 920 |
| 2022 | 769 |
| 2023 | 626 |
| 2024 | 272 |