LIB1	LIB2	LIB3	LIB4	ALP1	ALP2	ALP3	ALP4
1984	43.5				56.5			
1987	46.4	47.4			53.6	52.6		
1990		54.6				45.4		
1993		51.9	52.6			48.1	47.4	
1996			55.6				44.4	
1998			54.2				45.8	
2001			54.2	56.2			45.8	43.8
2004				63.2				36.8
2007				55.1				44.9
2010				51.8				48.2