New York ? Americans gave nearly $300 billion to charitable causes last year, setting a new record and besting the 2005 total that had been boosted by a surge in aid to victims of hurricanes Katrina, Rita and Wilma and the Asian tsunami.

Donors contributed an estimated $295.02 billion in 2006, a 1 percent increase when adjusted for inflation, up from $283.05 billion in 2005. Excluding donations for disaster relief, the total rose 3.2 percent, inflation-adjusted, according to an annual report released Monday by the Giving USA Foundation in Glenview, Ill. The report is researched and written by the Center on Philanthropy at Indiana University.

Individuals gave a combined 75.6 percent of the total. With bequests, that rises to 83.4 percent.

The biggest chunk of the donations, $96.82 billion or 32.8 percent, went to religious organizations. The second largest slice, $40.98 billion or 13.9 percent, went to education, including gifts to colleges, universities and libraries.

About 65 percent of households with incomes less than $100,000 give to charity, the report showed.

“It tells you something about American culture that is unlike any other country,” said Claire Gaudiani, a professor at NYU’s Heyman Center for Philanthropy and author of “The Greater Good: How Philanthropy Drives the American Economy and Can Save Capitalism.” Gaudiani said the willingness of Americans to give cuts across income levels, and their investments go to developing ideas, inventions and people to the benefit of the overall economy.

Gaudiani said Americans give twice as much as the next most charitable country, according to a November 2006 comparison done by the Charities Aid Foundation. In philanthropic giving as a percentage of gross domestic product, the U.S. ranked first at 1.7 percent. No. 2 Britain gave 0.73 percent, while France, with a 0.14 percent rate, trailed such countries as South Africa, Singapore, Turkey and Germany.