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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 1 |
| 1961 | 1 |
| 1964 | 3 |
| 1965 | 35 |
| 1966 | 46 |
| 1967 | 68 |
| 1968 | 84 |
| 1969 | 117 |
| 1970 | 137 |
| 1971 | 177 |
| 1972 | 135 |
| 1973 | 147 |
| 1974 | 145 |
| 1975 | 156 |
| 1976 | 196 |
| 1977 | 155 |
| 1978 | 157 |
| 1979 | 176 |
| 1980 | 149 |
| 1981 | 186 |
| 1982 | 229 |
| 1983 | 221 |
| 1984 | 269 |
| 1985 | 305 |
| 1986 | 372 |
| 1987 | 456 |
| 1988 | 506 |
| 1989 | 555 |
| 1990 | 594 |
| 1991 | 673 |
| 1992 | 716 |
| 1993 | 877 |
| 1994 | 751 |
| 1995 | 908 |
| 1996 | 997 |
| 1997 | 1017 |
| 1998 | 1030 |
| 1999 | 1110 |
| 2000 | 1417 |
| 2001 | 1523 |
| 2002 | 1662 |
| 2003 | 1608 |
| 2004 | 1677 |
| 2005 | 2038 |
| 2006 | 2259 |
| 2007 | 2316 |
| 2008 | 2501 |
| 2009 | 2696 |
| 2010 | 2751 |
| 2011 | 2621 |
| 2012 | 2638 |
| 2013 | 2616 |
| 2014 | 2719 |
| 2015 | 2804 |
| 2016 | 2722 |
| 2017 | 2923 |
| 2018 | 2959 |
| 2019 | 3185 |
| 2020 | 2502 |
| 2021 | 1579 |
| 2022 | 212 |
| 2023 | 115 |
| 2024 | 1382 |
| 2025 | 1 |