LIB1	LIB2	LIB3	LIB4	LIB5	ALP1	ALP2	ALP3	ALP4	ALP5
1984	36.2					63.8				
1987	40.1					59.9				
1990	41.2	41				58.8	59			
1993		36.6					63.4			
1996		46.6					53.4			
1998		40.1	40.5				59.9	59.5		
2001			46.9					53.1		
2004			50.6	61.4				49.4	38.6	
2007				54.5	44.3				45.5	55.7
2010					49.1					50.9