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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1876 | 1 |
| 1938 | 1 |
| 1943 | 2 |
| 1944 | 3 |
| 1945 | 1 |
| 1947 | 6 |
| 1948 | 4 |
| 1949 | 2 |
| 1950 | 1 |
| 1951 | 6 |
| 1952 | 3 |
| 1953 | 4 |
| 1954 | 5 |
| 1955 | 6 |
| 1956 | 6 |
| 1957 | 4 |
| 1958 | 12 |
| 1959 | 4 |
| 1960 | 13 |
| 1961 | 12 |
| 1962 | 47 |
| 1963 | 31 |
| 1964 | 19 |
| 1965 | 33 |
| 1966 | 27 |
| 1967 | 26 |
| 1968 | 33 |
| 1969 | 30 |
| 1970 | 45 |
| 1971 | 56 |
| 1972 | 58 |
| 1973 | 51 |
| 1974 | 52 |
| 1975 | 69 |
| 1976 | 91 |
| 1977 | 89 |
| 1978 | 84 |
| 1979 | 81 |
| 1980 | 107 |
| 1981 | 78 |
| 1982 | 112 |
| 1983 | 121 |
| 1984 | 111 |
| 1985 | 146 |
| 1986 | 202 |
| 1987 | 207 |
| 1988 | 277 |
| 1989 | 293 |
| 1990 | 313 |
| 1991 | 317 |
| 1992 | 361 |
| 1993 | 380 |
| 1994 | 472 |
| 1995 | 514 |
| 1996 | 608 |
| 1997 | 621 |
| 1998 | 691 |
| 1999 | 826 |
| 2000 | 1072 |
| 2001 | 1297 |
| 2002 | 1419 |
| 2003 | 1706 |
| 2004 | 2046 |
| 2005 | 2420 |
| 2006 | 2729 |
| 2007 | 3238 |
| 2008 | 3624 |
| 2009 | 4115 |
| 2010 | 4885 |
| 2011 | 5666 |
| 2012 | 6305 |
| 2013 | 6515 |
| 2014 | 6904 |
| 2015 | 7501 |
| 2016 | 7734 |
| 2017 | 7878 |
| 2018 | 8221 |
| 2019 | 8087 |
| 2020 | 9094 |
| 2021 | 9768 |
| 2022 | 8459 |
| 2023 | 74 |