Length of Service in House and Senate«

 

Congress

   
 

1st-56th

57th-103rd

104th

Term

(1789-1891)

(1891-1995)

(1995-1997)

 

House

   
One (up to 2 years)

44.0%

23.3%

19.5%

Two to six (3 to 12 years)

53.4%

49.7%

48.5%

Seven or more (14+ years)

2.6%

27.0%

32.0%

Mean number of terms

2.1

4.8

5.0

 

Senate

   
One (up to six years)

65.6%

45.6%

28.0%

Two (7 to 12 years)

23.4%

22.4%

27.0%

Three or more (18+ years)

11.0%

32.0%

45.0%

Mean number of terms

1.5

2.2

2.6

«Roger Davidson and Walter Oleszek, "The Two Congresses and the American People," in Congress and Its Members Fifth Edition, 1996.