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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 | 2 |
| 1952 | 1 |
| 1953 | 2 |
| 1954 | 2 |
| 1955 | 3 |
| 1956 | 5 |
| 1957 | 3 |
| 1958 | 3 |
| 1959 | 3 |
| 1960 | 6 |
| 1961 | 4 |
| 1962 | 6 |
| 1963 | 6 |
| 1964 | 33 |
| 1965 | 40 |
| 1966 | 43 |
| 1967 | 57 |
| 1968 | 110 |
| 1969 | 170 |
| 1970 | 187 |
| 1971 | 195 |
| 1972 | 246 |
| 1973 | 447 |
| 1974 | 776 |
| 1975 | 796 |
| 1976 | 829 |
| 1977 | 662 |
| 1978 | 439 |
| 1979 | 541 |
| 1980 | 532 |
| 1981 | 589 |
| 1982 | 474 |
| 1983 | 541 |
| 1984 | 471 |
| 1985 | 478 |
| 1986 | 483 |
| 1987 | 483 |
| 1988 | 752 |
| 1989 | 745 |
| 1990 | 1024 |
| 1991 | 1064 |
| 1992 | 1103 |
| 1993 | 1198 |
| 1994 | 1104 |
| 1995 | 1143 |
| 1996 | 1243 |
| 1997 | 1254 |
| 1998 | 1201 |
| 1999 | 1032 |
| 2000 | 1146 |
| 2001 | 1156 |
| 2002 | 1321 |
| 2003 | 1209 |
| 2004 | 1266 |
| 2005 | 1083 |
| 2006 | 1198 |
| 2007 | 1271 |
| 2008 | 1313 |
| 2009 | 1388 |
| 2010 | 1560 |
| 2011 | 1900 |
| 2012 | 2180 |
| 2013 | 2261 |
| 2014 | 2078 |
| 2015 | 1985 |
| 2016 | 1939 |
| 2017 | 1620 |
| 2018 | 1300 |
| 2019 | 1259 |
| 2020 | 1206 |
| 2021 | 1079 |
| 2022 | 174 |
| 2023 | 60 |
| 2024 | 249 |
| 2025 | 208 |