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In season ten, the total viewer numbers for the first week of shows fell 1213%, and by up to 23% in the 1849 demo compared to season nine. Later episodes, however, retained viewers better, and the season ended on a high with a significant increase in viewership for the finale up 12% for the adults 1849 demo and a 21% increase in total viewers from the season nine finale. While the overall viewer number has increased this season, its viewer demographics have continued to age year on year the median age this season was 47.2 compared to a median age of 32.1 in its first season. By the time of the 201011 television season, Fox was in its seventh consecutive season of victory overall in the 1849 demographic ratings in the United States.

What was the average age of American Idols viewers in its tenth season?
47.2