Well Clinton won those electrons and sure, less educated people helped him.
However, the important data is the educated votes. Bush won in 2004, but lost among the best educated states in general. Table 1 of your document shows 44 percent and 47 percent of the college educated voters went for Clinton in 92 and 96 respectively. Without the republican numbers for the educated votes we can't see who won the educated vote in 92 and 96. Again what would matter is if the Democrats won the educated vote in 92, 96, 2000, and 2004 even if losing in 2000 and 2004.