What Do 77% of Philanthropists Have in Common?

What 77% of philanthropists have in common is that they would rather not publicize their giving, according to a recent report by Forbes Insights, "BNP Paribas Individual Philanthropy Index: Measuring Commitment in Europe, Asia, Middle East." The Index is derived from a survey of more than 300 individuals with at least $5 million in investable assets that was conducted by Forbes Insights in early 2013.