Total US aid as a percentage of each country’s GDP:
Syria 7.3%
Jordan 5.7%
Lebanon 3.5%
Yemen 2.3%
Israel 0.7%
Egypt 0.4%
Source United States foreign aid - Wikipedia + arithmetic
Of course, Israel depends to a significant extent on U.S. willingness to sell Israel weapons that the U.S. would not sell to others. But in $ terms, US aid to Israel is insignificant.