For your convenience, they show both the 52 week high and low for each stock that has triggered on either end. That way you can see what its overall range is, too. You should be able to transcribe into a spreadsheet the data that is of interest and then calculate the ranges. Also, you could then add current prices over time for those same tickers and determine how the stock prices have ranged over time.
This is part of the Market Laboratory section of Barron's and contains some very interesting data fields.