"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
170600	1970	    	    	    	    	    	    	    	    	    	    	    	    
170600	1971	    	    	    	    	    	    	    	    	    	    	    	    
170600	1972	    	    	    	    	    	    	    	    	    	    	    	    
170600	1973	    	    	    	    	    	    	    	    	    	    	    	    
170600	1974	    	    	    	    	    	    	    	    	    	    	    	    
170600	1975	    	    	    	    	    	    	    	    	    	    	    	    
170600	1976	    	    	    	    	    	    	    	    	    	    	    	    
170600	1977	    	  279	    	    	    	    	    	    	    	    	    	    
170600	1978	    	    	    	    	    	    	    	    	    	    	    	    
170600	1979	    	    	    	    	    	    	    	    	    	    	    	    
170600	1980	    	    	    	    	    	    	    	    	    	    	    	    
170600	1981	    	    	    	    	    	    	    	    	    	    	    	    
170600	1982	    	    	    	    	    	    	    	    	    	    	    	    
170600	1983	    	    	    	    	    	    	    	    	    	    	    	    
170600	1984	    	    	    	    	    	    	    	    	    	    	    	    
170600	1985	    	    	    	    	    	    	    	    	    	    	    	    
170600	1986	    	    	    	    	    	    	    	    	    	    	    	    
170600	1987	    	    	    	    	    	    	    	    	    	    	    	    
170600	1988	    	    	    	    	    	    	    	    	    	    	    	    
170600	1989	    	    	    	    	    	    	    	    	    	    	    	    
170600	1990	    	    	    	    	    	    	    	    	    	    	    	    
170600	1991	    	    	    	    	    	    	    	    	    	    	    	    
170600	1992	    	    	    	    	    	    	    	    	    	    	    	    
170600	1993