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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 1 |
| 1962 | 1 |
| 1963 | 3 |
| 1964 | 1 |
| 1965 | 1 |
| 1966 | 1 |
| 1967 | 2 |
| 1968 | 2 |
| 1971 | 1 |
| 1972 | 2 |
| 1973 | 1 |
| 1975 | 11 |
| 1976 | 5 |
| 1977 | 318 |
| 1978 | 1066 |
| 1979 | 1229 |
| 1980 | 1300 |
| 1981 | 1508 |
| 1982 | 1654 |
| 1983 | 1524 |
| 1984 | 1669 |
| 1985 | 1726 |
| 1986 | 1761 |
| 1987 | 1659 |
| 1988 | 1609 |
| 1989 | 1646 |
| 1990 | 1517 |
| 1991 | 1538 |
| 1992 | 1463 |
| 1993 | 1442 |
| 1994 | 1344 |
| 1995 | 1317 |
| 1996 | 1379 |
| 1997 | 1216 |
| 1998 | 1087 |
| 1999 | 1158 |
| 2000 | 1236 |
| 2001 | 1070 |
| 2002 | 998 |
| 2003 | 964 |
| 2004 | 962 |
| 2005 | 992 |
| 2006 | 988 |
| 2007 | 1006 |
| 2008 | 1079 |
| 2009 | 1105 |
| 2010 | 1111 |
| 2011 | 1170 |
| 2012 | 1118 |
| 2013 | 1216 |
| 2014 | 1167 |
| 2015 | 1187 |
| 2016 | 1308 |
| 2017 | 1270 |
| 2018 | 1250 |
| 2019 | 1314 |
| 2020 | 1340 |
| 2021 | 1348 |
| 2022 | 589 |
| 2023 | 329 |
| 2024 | 171 |