congress number
id number (ICPSR and Poole-Rosenthal)
icspr state code (see http://voteview.com/state_codes_icpsr.htm)
congressional district number
name of state
party code (see http://voteview.com/party3.htm)
name of member
Number Roll Calls Voted
Number of Times on the Winning Side
Percent on the Winning Side  (-99.000 Missing)
Number Non-Unanimous Roll Calls Voted
Number of Times on the Winning Side Non-Unanimous Roll Calls
Percent on the Winning Side Non-Unanimous Roll Calls (-99.000 Missing)