To make quite certain, I enlisted statistics editor Scott DeCarlo to help double check.

FORBES: 300 Years Of Data Confirms Winning Strategy: Buy Stocks Now, Sell In May

Thanks to Scott DeCarlo for building and maintaining our insider database screen.

FORBES: Who Got Rich This Week: A Toyota Target, An IT Innovator And More

Many thanks to Forbes Editor Scott DeCarlo for building our 17, 000-strong insider database and putting it through its weekly paces.

FORBES: Who Got Rich This Week: The Forgotten LinkedIn Founder, Tootsie Roll Baroness and More

Special thanks to my colleagues, statistical wizards John Ray and Scott DeCarlo for their assistance in constructing this chart.

FORBES: S&P Poised For Dropoff, Says Initial Jobless Claims

Special thanks to stats-maven Scott DeCarlo for help with the screen.

FORBES: Biotech Busts And Breakthroughs For August

The composite measuring stick used by my colleague Scott DeCarlo and his team found that only 28 of the 2, 000 are headquartered on the African continent.

FORBES: Still Missing: Africa in the Global 2000

Thanks to Scott DeCarlo for building and maintaining our database.

FORBES: See Who Got Rich This Week: Housing Executives, Steve Ballmer and Other Screw-Ups

Scott DeCarlo, who manages the project for Forbes, spotlighted for me 20 other Chinese companies in the top 500 of the list that gained by double- or triple-digit bounds in their ranks.

FORBES: China Sets the Asian Bar in Latest Global 2000