findScorePercent uses the saw_score_table (Score/Analytical Writing Table) to look up the percent of test takers scorig lower than a specified scores using tables 1A and 1B on page 22 of the GRE score guide.
A data frame with 13 observations on the following 2 variables.
Current GRE score scale, i.e. 0-6
Percent of scores below the associated input
GRE Score Guide: https://www.ets.org/s/gre/pdf/gre_guide.pdf