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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1949 | 1 |
| 1953 | 15 |
| 1954 | 25 |
| 1955 | 38 |
| 1956 | 11 |
| 1957 | 12 |
| 1958 | 14 |
| 1959 | 23 |
| 1960 | 41 |
| 1961 | 45 |
| 1962 | 36 |
| 1964 | 12 |
| 1965 | 38 |
| 1966 | 97 |
| 1967 | 90 |
| 1968 | 111 |
| 1969 | 89 |
| 1970 | 121 |
| 1971 | 99 |
| 1972 | 131 |
| 1973 | 156 |
| 1974 | 122 |
| 1975 | 145 |
| 1976 | 127 |
| 1977 | 142 |
| 1978 | 148 |
| 1979 | 115 |
| 1980 | 100 |
| 1981 | 129 |
| 1982 | 137 |
| 1983 | 119 |
| 1984 | 181 |
| 1985 | 169 |
| 1986 | 202 |
| 1987 | 194 |
| 1988 | 217 |
| 1989 | 206 |
| 1990 | 223 |
| 1991 | 236 |
| 1992 | 239 |
| 1993 | 242 |
| 1994 | 249 |
| 1995 | 297 |
| 1996 | 353 |
| 1997 | 372 |
| 1998 | 360 |
| 1999 | 399 |
| 2000 | 427 |
| 2001 | 497 |
| 2002 | 510 |
| 2003 | 647 |
| 2004 | 645 |
| 2005 | 734 |
| 2006 | 842 |
| 2007 | 941 |
| 2008 | 919 |
| 2009 | 1062 |
| 2010 | 1181 |
| 2011 | 1346 |
| 2012 | 1420 |
| 2013 | 1458 |
| 2014 | 1352 |
| 2015 | 1367 |
| 2016 | 1306 |
| 2017 | 1183 |
| 2018 | 1180 |
| 2019 | 1117 |
| 2020 | 868 |
| 2021 | 633 |
| 2022 | 504 |
| 2023 | 297 |
| 2024 | 222 |