By the numbers: 113th Congress

(CNN) -- While the demographic composition of the 113th Congress is in some sense historic, many issues it will face - government spending, entitlement reform, and immigration - are nothing new.

Will the new Congress continue the reputation of its predecessor as a 'do-nothing Congress' or will be productive?

Here's a look - by the numbers - at the new wave of legislators on Capitol Hill:

13 - New senators.

84 - New House members.

78 - Women in the new House of Representatives. There are 20 female Senators

38 - Years in office of the longest currently serving senator, Patrick Leahy, D-Vermont.

53+ - Years in office of the longest currently serving congressman, John Dingell, D-Michigan.

5 - Net gain in number of seats women hold in 113th Congress over 112th.

3 - States with two women senators: California, New Hampshire, and Washington.

95 - Percent of the U.S. Senate that is white.

19 - Percent of the U.S. House of Representatives that belong to minority groups.

89 - Age of the oldest-ever member of the House, Ralph Hall, R-Texas. He broke the previous record on Christmas Day, his birthday.

8.5 - Percent of the U.S. House under 40.

27 - Percent of the Senate that is Catholic.

4 - The number of new U.S. House seats in Texas created by reapportionment; out 12 total. Texas gained more new seats than any other state.

5 - Members of the 113th Congress who had previous careers in professional sports.

7 - Members who are openly gay or bisexual.

12 - New members who have served in the U.S. military.

2 - Physicists in Congress: Rep. Bill Foster, a Democratic congressman-elect from Illinois, and Rep. Rush Holt, Jr., a New Jersey Democrat.

6 - Number of reindeer owned by Kerry Bentivolio, a congressman-elect from Michigan. He has worked as a Santa impersonator since the 1980s before running for Congress.

New Congress takes office Thursday, will tackle leftovers from old Congress.