quarterly losing streaks Dow Jones (1896-Sep. 2015)
Following a research done by marketwatch with data from FactSet I rechecked a possible "redo" of Q1 1977 up to Q1 1978, which would lead to a 25% drop implying a Dow Jones (IA)-level of of between 13,100 and 14,000 points in Q1 2016.
source with complete data since the year 1896: http://www.marketwatch.com