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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1951 | 3 |
| 1952 | 2 |
| 1953 | 5 |
| 1954 | 3 |
| 1955 | 1 |
| 1956 | 1 |
| 1958 | 4 |
| 1959 | 1 |
| 1960 | 3 |
| 1961 | 6 |
| 1962 | 4 |
| 1963 | 15 |
| 1964 | 9 |
| 1965 | 20 |
| 1966 | 18 |
| 1967 | 34 |
| 1968 | 29 |
| 1969 | 38 |
| 1970 | 33 |
| 1971 | 28 |
| 1972 | 16 |
| 1973 | 20 |
| 1974 | 36 |
| 1975 | 44 |
| 1976 | 17 |
| 1977 | 49 |
| 1978 | 31 |
| 1979 | 43 |
| 1980 | 36 |
| 1981 | 42 |
| 1982 | 54 |
| 1983 | 59 |
| 1984 | 58 |
| 1985 | 53 |
| 1986 | 61 |
| 1987 | 64 |
| 1988 | 78 |
| 1989 | 77 |
| 1990 | 80 |
| 1991 | 76 |
| 1992 | 84 |
| 1993 | 83 |
| 1994 | 94 |
| 1995 | 98 |
| 1996 | 114 |
| 1997 | 100 |
| 1998 | 154 |
| 1999 | 168 |
| 2000 | 189 |
| 2001 | 177 |
| 2002 | 154 |
| 2003 | 188 |
| 2004 | 241 |
| 2005 | 249 |
| 2006 | 233 |
| 2007 | 286 |
| 2008 | 248 |
| 2009 | 281 |
| 2010 | 246 |
| 2011 | 273 |
| 2012 | 307 |
| 2013 | 306 |
| 2014 | 351 |
| 2015 | 386 |
| 2016 | 394 |
| 2017 | 402 |
| 2018 | 417 |
| 2019 | 412 |
| 2020 | 469 |
| 2021 | 466 |
| 2022 | 448 |
| 2023 | 463 |
| 2024 | 457 |
| 2025 | 504 |
| 2026 | 206 |
| 2027 | 1 |