Each bar on the bar graph represents a link from the Welcome Message in the survey that was emailed. Each bar is labeled “Link 1, Link2, Link3, etc.” Once you have clicked on a bar the details will show up on the grid. Just above the grid you will see the link number followed by the link it represents. You can also click on the link to go to the page that the link directed your audience to.
 
For example, if you clicked on one of the bars and it is labeled “Link 2” the grid will show the statistics for “Link 2” and just above the grid, you will see the word “Link 2” followed by your link’s URL.