“Many people think of support for churches as the essence of charity, and spokespeople for the sector do their best to reinforce that view. If we look past the rhetoric at the actual numbers, though, we get a different picture.”
This article is a bit long-winded, but contains some very interesting data about the US. It’s the best we’ve got in the absence of similar data about NZ.
Source – http://www.economonitor.com/dolanecon/2012/04/20/the-charitable-deduction-as-a-tax-expenditure-what-it-buys-and-what-to-do-about-it-part-1/?utm_source=contactology&utm_medium=email&utm_campaign=EconoMonitor%20Highlights%3A%20Back%20to%20Spain%2C%20Oil%20Speculation%2C%20Global%20Growth%20Challenges%20%20%20