It is more than five years since Koizumi restired from Japanese premier in 2006 which sharply contrast with less than one year that his three conversation predecessors served time.

• 已退出政坛的小泉纯一郎任日本首相长达五年多，直到2006年才卸任，与他的三个任职不到一年就辞职的保守派继任者形成鲜明对比。