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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1948 | 1 |
| 1949 | 1 |
| 1951 | 6 |
| 1952 | 15 |
| 1953 | 20 |
| 1954 | 12 |
| 1955 | 17 |
| 1956 | 16 |
| 1957 | 45 |
| 1958 | 29 |
| 1959 | 6 |
| 1962 | 1 |
| 1963 | 1 |
| 1964 | 1 |
| 1965 | 45 |
| 1966 | 90 |
| 1967 | 129 |
| 1968 | 195 |
| 1969 | 243 |
| 1970 | 234 |
| 1971 | 264 |
| 1972 | 217 |
| 1973 | 241 |
| 1974 | 250 |
| 1975 | 181 |
| 1976 | 178 |
| 1977 | 209 |
| 1978 | 225 |
| 1979 | 310 |
| 1980 | 292 |
| 1981 | 379 |
| 1982 | 404 |
| 1983 | 460 |
| 1984 | 337 |
| 1985 | 408 |
| 1986 | 374 |
| 1987 | 356 |
| 1988 | 384 |
| 1989 | 407 |
| 1990 | 470 |
| 1991 | 481 |
| 1992 | 415 |
| 1993 | 428 |
| 1994 | 413 |
| 1995 | 643 |
| 1996 | 826 |
| 1997 | 910 |
| 1998 | 922 |
| 1999 | 911 |
| 2000 | 939 |
| 2001 | 1020 |
| 2002 | 1171 |
| 2003 | 1183 |
| 2004 | 1244 |
| 2005 | 1482 |
| 2006 | 1526 |
| 2007 | 1718 |
| 2008 | 1846 |
| 2009 | 1812 |
| 2010 | 1891 |
| 2011 | 2330 |
| 2012 | 2472 |
| 2013 | 2500 |
| 2014 | 2488 |
| 2015 | 2664 |
| 2016 | 2574 |
| 2017 | 2616 |
| 2018 | 2720 |
| 2019 | 2918 |
| 2020 | 2205 |
| 2021 | 1307 |
| 2022 | 141 |
| 2023 | 160 |
| 2024 | 1916 |
| 2025 | 17 |