Number of members of Congress or their families who traded stock in companies lobbying on matters before their committees from 2007 to 2010, according to a recent Washington Post investigation: 130

Percent of those lawmakers who were Democrats: 52

Who were Republicans: 48

Portion of all stock trades by lawmakers that intersected with legislation they were involved with: 1 in 8

Number of prohibitions on this practice under current ethics rules: 0

Number of members of Congress who sold all of their stock in a company under investigation by the Senate Commerce Committee for deceptive internet billing practices before the results of the probe became public: 4

Number of Congressmen who recast their financial portfolios during the financial crisis after phone calls or meetings with Treasury Secretary Henry M. Paulson Jr.;  his successor, Timothy F. Geithner; or Federal Reserve Chairman Ben S. Bernanke: 34

Number of trades that Sen. Mitch McConnell (R-Ky.) made on Jan. 31, 2008 following extensive conversations with Paulson about the proposed stimulus bill: 4

Value of each of those trades, which involved mutual funds: $15,000 to $50,000

Value of General Electric stock sold by Rep. Ed Whitfield (R-Ky.) shortly before a Republican filibuster killed legislation that the company had lobbied for to enhance its business: between $50,000 and $100,000

Number of years that Whitfield had held the stock: 12

Value of stock in the defense conglomerate United Technologies that Whitfield sold on the same day in October 2009 that his subcommittee approved a bill affecting the company's operations: $50,000 to $100,000

Number of trades Whitfield made in companies registered to lobby before his committee: 23

Percent of his total reported stock trades those represent: 38

Value of overlapping trades made by Rep. Michael McCaul (R-Tex.), the member of Congress who reported the highest number of such questionable trades: $5 million to $23 million

According to research led by a Georgia State University professor, percent by which House members outperform the market as a whole: 6

Percent by which Senators do so: 10

Date on which Congress passed the Stock Act, legislation introduced by Sen. Joe Lieberman (I-Conn.) that prohibits lawmakers and their staffs from trading on insider information acquired on Capitol Hill: 3/22/2012

Number of prohibitions in the Stock Act against lawmakers trading stock in industries they oversee: 0

Click on figure to go to source. Most of the data in this index comes from a Washington Post investigation in which reporters examined 45,000 individual stock transactions computerized by the Center for Responsive Politics' database using financial disclosures filed by House and Senate members.