The service's previous best performance record in its nine year history was set in March 2004 when the figure reached 63.03%.

BBC: The service is on track to beat its response targets for May

After surging 3.4% in the first 10 trading days of March, including the March 5 record, the Dow fell 25.03 points, or 0.17%, to 14514.11.

WSJ: Snap! There Goes Dow's Streak