Click on the My Surveys tab. Select the survey you'd like to track by clicking on it from the list displayed in "List of My Surveys" or "List of My Team Surveys".
Once selected, click on the "Dashboard" button. Alternately, hover your mouse over the number of respondents until this section turns blue and then click. Your survey Dashboard will appear in both cases in a pop-up window, showing you how many surveys have been completed and pending and how many surveys have been completed on a weekly basis.