31.   Both houses of the Legislature can issue subpoenas, but in recent decades they have seldom invoked this power.

32.   Blacks in recent decades have heavily favored Democrats in national elections.

33.   Both incidence and mortality are down, and virtually all experts agree that a sharp decline in smoking over recent decades is responsible.

34.   Both parties have suffered sharp defeats in recent decades only to bounce back dramatically.

35.   Blood supplies, while currently regarded as extremely safe in developed countries, have repeatedly been contaminated by viruses in recent decades.

36.   A devaluation could be disastrous for Argentina, which has borrowed heavily in dollars in recent decades and which has pegged its currency tightly to the U.S. dollar.

37.   A nationwide Boston Globe poll acknowledges the profound advances made in race relations in recent decades.

38.   Admittedly, labor has been its own worst enemy in recent decades.

39.   After intensive excavations this year, Egyptian archeologists have disclosed the first details of what they say is one of the most spectacular discoveries in Egypt in recent decades.

40.   All have an aging population due to lower birthrates in recent decades.