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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1917 | 1 |
| 1918 | 1 |
| 1931 | 2 |
| 1932 | 1 |
| 1934 | 1 |
| 1936 | 4 |
| 1937 | 2 |
| 1942 | 2 |
| 1944 | 1 |
| 1945 | 12 |
| 1946 | 10 |
| 1947 | 8 |
| 1948 | 17 |
| 1949 | 25 |
| 1950 | 30 |
| 1951 | 51 |
| 1952 | 64 |
| 1953 | 66 |
| 1954 | 56 |
| 1955 | 46 |
| 1956 | 38 |
| 1957 | 54 |
| 1958 | 45 |
| 1959 | 60 |
| 1960 | 74 |
| 1961 | 77 |
| 1962 | 81 |
| 1963 | 71 |
| 1964 | 77 |
| 1965 | 84 |
| 1966 | 90 |
| 1967 | 81 |
| 1968 | 108 |
| 1969 | 83 |
| 1970 | 112 |
| 1971 | 95 |
| 1972 | 86 |
| 1973 | 116 |
| 1974 | 127 |
| 1975 | 115 |
| 1976 | 104 |
| 1977 | 132 |
| 1978 | 162 |
| 1979 | 143 |
| 1980 | 151 |
| 1981 | 177 |
| 1982 | 164 |
| 1983 | 186 |
| 1984 | 184 |
| 1985 | 207 |
| 1986 | 224 |
| 1987 | 242 |
| 1988 | 305 |
| 1989 | 323 |
| 1990 | 321 |
| 1991 | 363 |
| 1992 | 426 |
| 1993 | 450 |
| 1994 | 532 |
| 1995 | 505 |
| 1996 | 538 |
| 1997 | 598 |
| 1998 | 679 |
| 1999 | 746 |
| 2000 | 819 |
| 2001 | 853 |
| 2002 | 1048 |
| 2003 | 1203 |
| 2004 | 1377 |
| 2005 | 1661 |
| 2006 | 2083 |
| 2007 | 2310 |
| 2008 | 2791 |
| 2009 | 3090 |
| 2010 | 3736 |
| 2011 | 4379 |
| 2012 | 4985 |
| 2013 | 5254 |
| 2014 | 5845 |
| 2015 | 6230 |
| 2016 | 6690 |
| 2017 | 7427 |
| 2018 | 8075 |
| 2019 | 8544 |
| 2020 | 10320 |
| 2021 | 11587 |
| 2022 | 11057 |
| 2023 | 10780 |
| 2024 | 9922 |
| 2025 | 59 |