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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 1 |
| 1967 | 8 |
| 1968 | 4 |
| 1969 | 8 |
| 1970 | 2 |
| 1971 | 10 |
| 1972 | 14 |
| 1973 | 23 |
| 1974 | 30 |
| 1975 | 45 |
| 1976 | 30 |
| 1977 | 37 |
| 1978 | 54 |
| 1979 | 36 |
| 1980 | 55 |
| 1981 | 41 |
| 1982 | 46 |
| 1983 | 60 |
| 1984 | 70 |
| 1985 | 66 |
| 1986 | 84 |
| 1987 | 125 |
| 1988 | 164 |
| 1989 | 198 |
| 1990 | 368 |
| 1991 | 447 |
| 1992 | 607 |
| 1993 | 348 |
| 1994 | 500 |
| 1995 | 542 |
| 1996 | 569 |
| 1997 | 797 |
| 1998 | 701 |
| 1999 | 601 |
| 2000 | 658 |
| 2001 | 749 |
| 2002 | 773 |
| 2003 | 877 |
| 2004 | 808 |
| 2005 | 808 |
| 2006 | 681 |
| 2007 | 787 |
| 2008 | 853 |
| 2009 | 896 |
| 2010 | 959 |
| 2011 | 1143 |
| 2012 | 1238 |
| 2013 | 1310 |
| 2014 | 1370 |
| 2015 | 1536 |
| 2016 | 1537 |
| 2017 | 1512 |
| 2018 | 1562 |
| 2019 | 1736 |
| 2020 | 1580 |
| 2021 | 738 |
| 2022 | 113 |
| 2023 | 86 |
| 2024 | 443 |
| 2025 | 530 |