  
<prompt> Trends in age of first sexual intercourse | Percent | (2008 NDHS, Percentage of women 15-19 who had sexual intercourse before exact age 15, 15) (2013 NDHS, Percentage of women 15-19 who had sexual intercourse before exact age 15, 16) (2008 NDHS, Percentage of men 15-19 who had sexual intercourse before exact age 15, 6) (2013 NDHS, Percentage of men 15-19 who had sexual intercourse before exact age 15, 3) (2008 NDHS, Percentage of women 18-19 who had sexual intercourse before exact age 18, 53) (2013 NDHS, Percentage of women 18-19 who had sexual intercourse before exact age 18, 53) (2008 NDHS, Percentage of men 18-19 who had sexual intercourse before exact age 18, 26) (2013 NDHS, Percentage of men 18-19 who had sexual intercourse before exact age 18, 21) <response> Similarly, the proportion of men who had sexual intercourse before the age 18, which is higher in the proportion of men who had sexual intercourse before the age 15 than in the 2013 NDHS (from 54% to 57%), and the proportion of men who had sexual intercourse before the age 18.  