What 1975 survey result reflected consumer anxiety driving food dating systems?

Answer

89 percent of shoppers favored dating systems.

Consumer anxiety regarding the freshness of increasingly processed foods in the 1960s manifested clearly in subsequent surveys that helped drive the move towards open dating. A specific survey conducted in 1975 provided quantitative evidence of this public sentiment, demonstrating that a vast majority, precisely 89 percent, of shoppers expressed a clear preference for the inclusion of dating systems on their food purchases. Furthermore, that same survey indicated that 95 percent of those surveyed considered "open dating" to be the most valuable consumer service available regarding freshness concerns.

What 1975 survey result reflected consumer anxiety driving food dating systems?
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