BEtwEEn whiCh two ConsECutivE two-yEAr pErioDs wAs thErE thE grEAtEst pErCEnt inCrEAsE in thEDEmoCrAtiC rECEiptsA．1981-82 to 1983-84
B．1985-86 to 1987-88
C．1989-90 to 1991-92
D．1991-92 to 1993-94
E、1993-94 to 1995-96