Based on these worldwide share numbers for the just-concluded month of December 2011, it looks like this Microsoft company continues to be successful with a web browser called Internet Explorer.

Source: Net Applications "Desktop Browser Version Market Share, December 2011"

The U.S. share numbers are a little different. In the U.S., usage of IE6 has dropped below 1%. A post on the official Exploring IE blog notes other countries where IE6 usage is under 1%: Austria, Poland, Sweden, Denmark, Finland, and Norway, with this month’s additions of the Czech Republic, Mexico, Ukraine, Portugal, and the Philippines.

Update: this t-shirt arrived in the afternoon mail from the Internet Explorer team, which is no doubt as sick of supporting IE6 as the rest of us:

XP, you’re next.