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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1949 | 2 |
| 1950 | 2 |
| 1951 | 1 |
| 1952 | 1 |
| 1953 | 3 |
| 1954 | 7 |
| 1956 | 1 |
| 1957 | 2 |
| 1958 | 2 |
| 1960 | 2 |
| 1961 | 3 |
| 1962 | 3 |
| 1963 | 4 |
| 1964 | 5 |
| 1965 | 1 |
| 1967 | 9 |
| 1968 | 12 |
| 1969 | 35 |
| 1970 | 61 |
| 1971 | 80 |
| 1972 | 90 |
| 1973 | 119 |
| 1974 | 170 |
| 1975 | 183 |
| 1976 | 188 |
| 1977 | 261 |
| 1978 | 364 |
| 1979 | 322 |
| 1980 | 329 |
| 1981 | 263 |
| 1982 | 263 |
| 1983 | 249 |
| 1984 | 275 |
| 1985 | 290 |
| 1986 | 323 |
| 1987 | 340 |
| 1988 | 344 |
| 1989 | 437 |
| 1990 | 531 |
| 1991 | 673 |
| 1992 | 631 |
| 1993 | 752 |
| 1994 | 897 |
| 1995 | 820 |
| 1996 | 898 |
| 1997 | 1004 |
| 1998 | 924 |
| 1999 | 895 |
| 2000 | 1052 |
| 2001 | 1099 |
| 2002 | 1027 |
| 2003 | 1171 |
| 2004 | 1228 |
| 2005 | 1315 |
| 2006 | 1465 |
| 2007 | 1597 |
| 2008 | 1624 |
| 2009 | 1489 |
| 2010 | 1613 |
| 2011 | 1683 |
| 2012 | 1733 |
| 2013 | 1926 |
| 2014 | 1965 |
| 2015 | 2078 |
| 2016 | 1997 |
| 2017 | 2281 |
| 2018 | 2511 |
| 2019 | 2539 |
| 2020 | 2157 |
| 2021 | 1696 |
| 2022 | 1402 |
| 2023 | 1080 |
| 2024 | 728 |