(sum) filter_house
(sum) filter_senate
(sum) count
(mean) pap_majortopic
(mean) cong
(sum) total_rollcalls
(sum) total_rollcalls_house
(sum) total_rollcalls_senate
(sum) count_ref
(sum) count_non
(sum) count_ref_house
(sum) count_ref_senate
(sum) count_non_house
(sum) count_non_senate
(sum) democrat
(sum) republican
(sum) total_bills_dem
(sum) total_bills_rep