PRINCETON, N.J., Oct. 19 (UPI) -- George Bush's approval rating averaged 33.2 percent in the 27th quarter of his presidency, one of the lowest among U.S. presidents since World War II.

Five of the 11 presidents have had a sixth year in office. Of those five, only Harry Truman was more unpopular at this point in his presidency, the Gallup Organization said.

Bush's popularity inched upward from the previous quarter, when it averaged 31.8 percent, but his ratings remain among the lowest of the post-war era.

Esteem for Dwight Eisenhower and Bill Clinton remained high in their second terms. Eisenhower's approval rating averaged 65.3 percent in his 27th quarter and Clinton's at 59.7 percent. Ronald Reagan, battered by the Iran-Contra scandal, had a 47 percent approval rating.

Truman had a 23 percent approval rating in his 27th quarter in late 1951 and early 1952.

Gallup counts the quarters as three-month intervals from the beginning of a presidency. Truman succeeded Franklin Roosevelt in April 1945.