Each state of the United States selects two senators to represent their states in the United States Senate. In 1913, the 17th Amendment[?] to the United States Constitution provided for the direct popular election of senators; prior to this, senators were selected by state legislatures.
... 64, and 13.5% who are 65 years of age or older. The median age is 40 years. For every 100 females there are 102.1 males. For every 100 females age 18 and over, th ...