This chart is from the book "Jihad in Saudi Arabia: Violence and Pan-Islamism since 1979" by Thomas Hegghammer. I was reading this book and came across this important chart: notice that contrary to public perceptions, the decline of Saudi support for Palestinians (and most of that are taxes levied on Palestinians working in Saudi Arabia, by the way), started long before the Iraqi invasion of Kuwait and coincided with the launch of the American-Saudi project of Islamist terrorism in Afghanistan against the communist government and its Soviet backers.
