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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 1 |
| 1956 | 1 |
| 1961 | 1 |
| 1962 | 3 |
| 1963 | 2 |
| 1964 | 3 |
| 1965 | 1 |
| 1966 | 2 |
| 1967 | 7 |
| 1968 | 5 |
| 1969 | 6 |
| 1970 | 5 |
| 1971 | 9 |
| 1972 | 2 |
| 1973 | 8 |
| 1974 | 5 |
| 1975 | 9 |
| 1976 | 6 |
| 1977 | 14 |
| 1978 | 10 |
| 1979 | 14 |
| 1980 | 9 |
| 1981 | 8 |
| 1982 | 15 |
| 1983 | 17 |
| 1984 | 15 |
| 1985 | 28 |
| 1986 | 25 |
| 1987 | 37 |
| 1988 | 38 |
| 1989 | 53 |
| 1990 | 55 |
| 1991 | 76 |
| 1992 | 63 |
| 1993 | 96 |
| 1994 | 80 |
| 1995 | 92 |
| 1996 | 134 |
| 1997 | 181 |
| 1998 | 207 |
| 1999 | 263 |
| 2000 | 316 |
| 2001 | 350 |
| 2002 | 360 |
| 2003 | 459 |
| 2004 | 570 |
| 2005 | 731 |
| 2006 | 815 |
| 2007 | 1003 |
| 2008 | 1098 |
| 2009 | 1314 |
| 2010 | 1481 |
| 2011 | 1604 |
| 2012 | 1731 |
| 2013 | 1898 |
| 2014 | 2026 |
| 2015 | 2182 |
| 2016 | 2110 |
| 2017 | 2202 |
| 2018 | 2363 |
| 2019 | 2419 |
| 2020 | 2768 |
| 2021 | 2919 |
| 2022 | 2675 |
| 2023 | 2530 |
| 2024 | 1898 |
| 2025 | 1 |