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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 2 |
| 1950 | 1 |
| 1951 | 1 |
| 1952 | 2 |
| 1953 | 4 |
| 1954 | 4 |
| 1955 | 6 |
| 1956 | 8 |
| 1957 | 5 |
| 1958 | 3 |
| 1959 | 7 |
| 1960 | 3 |
| 1961 | 12 |
| 1962 | 24 |
| 1963 | 24 |
| 1964 | 29 |
| 1965 | 22 |
| 1966 | 20 |
| 1967 | 40 |
| 1968 | 44 |
| 1969 | 59 |
| 1970 | 49 |
| 1971 | 56 |
| 1972 | 46 |
| 1973 | 37 |
| 1974 | 44 |
| 1975 | 52 |
| 1976 | 34 |
| 1977 | 58 |
| 1978 | 62 |
| 1979 | 46 |
| 1980 | 61 |
| 1981 | 80 |
| 1982 | 90 |
| 1983 | 102 |
| 1984 | 113 |
| 1985 | 99 |
| 1986 | 141 |
| 1987 | 135 |
| 1988 | 173 |
| 1989 | 155 |
| 1990 | 144 |
| 1991 | 192 |
| 1992 | 208 |
| 1993 | 219 |
| 1994 | 227 |
| 1995 | 247 |
| 1996 | 215 |
| 1997 | 223 |
| 1998 | 272 |
| 1999 | 269 |
| 2000 | 301 |
| 2001 | 308 |
| 2002 | 311 |
| 2003 | 300 |
| 2004 | 294 |
| 2005 | 405 |
| 2006 | 369 |
| 2007 | 365 |
| 2008 | 419 |
| 2009 | 419 |
| 2010 | 405 |
| 2011 | 443 |
| 2012 | 456 |
| 2013 | 434 |
| 2014 | 534 |
| 2015 | 551 |
| 2016 | 598 |
| 2017 | 620 |
| 2018 | 666 |
| 2019 | 621 |
| 2020 | 679 |
| 2021 | 780 |
| 2022 | 694 |
| 2023 | 649 |
| 2024 | 592 |
| 2025 | 3 |