"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
172602	1970	    	    	    	    	    	    	    	    	    	    	    	    
172602	1971	    	    	    	    	    	    	    	    	    	    	    	    
172602	1972	    	    	    	    	    	    	    	    	    	    	    	    
172602	1973	    	    	    	    	    	    	    	    	    	    	    	    
172602	1974	    	    	    	    	    	    	    	    	    	    	    	    
172602	1975	    	    	    	    	    	    	    	    	    	    	    	    
172602	1976	    	    	    	    	    	    	    	    	    	    	    	    
172602	1977	    	    	    	    	    	    	    	    	    	    	    	    
172602	1978	    	    	    	    	    	    	    	    	    	    	    	    
172602	1979	    	    	    	    	    	    	    	    	    	    	    	    
172602	1980	    	    	    	    	    	    	    	    	    	    	    	    
172602	1981	    	    	    	    	    	    	    	    	    	    	    	    
172602	1982	    	    	    	    	    	    	    	    	    	    	    	    
172602	1983	    	    	    	    	    	    	    	    	    	    	    	    
172602	1984	    	    	    	    	    	    	    	    	    	    	    	    
172602	1985	    	    	    	    	    	    	    	    	    	    	    	    
172602	1986	    	    	    	    	    	    	    	    	    	    	    	    
172602	1987	    	    	    	    	    	    	    	    	    	    	    	    
172602	1988	    	    	    	    	    	    	    	    	    	    	    	    
172602	1989	    	    	    	    	    	    	    	    	    	    	    	    
172602	1990	    	    	    	    	    	    	    	    	    	    	    	    
172602	1991	    	    	    	    	    	    	    	    	    	    	    	    
172602	1992	    	    	    	    	    	    	    	    	    	    	   51	  229
172602	1993	  216	  879	  826	    	    	    	    	    	    	    	    	  216