F1 chief executive Bernie Ecclestone confirmed that the less healthy television numbers are due to "the less-than-competitive nature of the final few rounds" of 2013.
The news also shows why Ecclestone is pushing so hard for the 'double points' concept to be trebled to the final 3 races of the season, despite the fan backlash.
Mercedes' Toto Wolff, however, likened the backlash to a "sh**storm" and said the fans cannot be ignored.
"Was it (double points) the right move? 99 per cent of our fans and spectators thought it was the wrong move so perhaps it is something to revisit," he told reporters at Jerez last week.
"(But) things need to be done when you see TV audiences dipping, you need to try out things," Wolff acknowledged.