Margarine Sales Keep Plummeting

Margarine sales keep plummeting, leaving investors highly confused while giant producers try to sell off their units making the vegetable-based spreads:
The Economist: Margarine Sales: Investors Can’t Believe They’re Not Better
This could not be more clearly illustrated than in the graph above, where the popularity of margarine is decreasing while butter is winning ground again.
http://news.heart.org/wp-content/uploads/2014/12/HBP-Deaths-12-19-04.jpg
Only about 10 years delay between curves.