series_id	year	period	value	footnote_codes
GPU00100000E0020 	1990	A01	        1111	
GPU00100000E0020 	1991	A01	        1111	
GPU00100000E0020 	1992	A01	        1111	
GPU00100000E0020 	1997	A01	        2222	
GPU00100000E0020 	1998	A01	        2222	
GPU00100000E0062 	1990	A01	        2222	
GPU00100000E0062 	1991	A01	        2222	
GPU00100000E0062 	1992	A01	        2222	
GPU00100000E0062 	1993	A01	        2222	
GPU00100000E0062 	1994	A01	        2222	
GPU00100000E0062 	1995	A01	        2222	
GPU00100000E0062 	1996	A01	        2222	
GPU00100000E0062 	1997	A01	        2222	
GPU00100000E0062 	1998	A01	        2222