Retaining Variables Between Sessions

I need to have Storyline "remember" variables between sessions of a program.  Is there a method to do this?

In the program a user enters a value between 1 and 10 using a slider control.  They also might enter a comment in a comment text entry field.  I have created variables to hold the user's entered value, the comments, as well as variables to perform calculations on the entered values to arrive at an cumulative average value over time.  At any given time, I want to be able to view the average response value and all comments that have been entered.

As long as I do not exit the program, everything works as I'd like.  When I exit however the values are lost.  I have had limited success by setting the player to resume on a restart, but this is inconsistent.  It seems to only work when I set the player to prompt to resume and even this does not consistently work.

Does Storyline have a method for persistent variables, or a way to write values out to a file and read them back in?  I am sure that can be scripted but I am not knowledgeable enough to write the script.

Any solutions or pointers to information would be greatly appreciated.  Thanks.