"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
171430	1970	    	    	    	    	    	    	    	    	    	    	    	    
171430	1971	    	    	    	    	    	    	    	    	    	    	    	    
171430	1972	    	    	    	    	    	    	    	    	    	    	    	    
171430	1973	    	    	    	    	    	    	    	    	    	    	    	    
171430	1974	    	    	    	    	    	    	    	    	    	    	    	    
171430	1975	    	    	    	    	    	    	    	    	    	    	    	    
171430	1976	    	    	    	    	    	    	    	    	    	    	    	    
171430	1977	    	    	    	    	    	    	    	    	    	    	    	    
171430	1978	    	    	    	    	    	    	    	    	    	    	    	    
171430	1979	    	    	    	    	    	    	    	    	    	    	    	    
171430	1980	    	    	    	    	    	    	    	    	    	    	    	    
171430	1981	    	    	    	    	    	    	    	    	    	    	    	    
171430	1982	    	    	    	    	    	    	    	    	    	    	    	    
171430	1983	    	    	    	    	    	    	    	    	    	    	    	    
171430	1984	    	    	    	    	    	    	    	    	    	    	    	    
171430	1985	    	    	    	    	    	    	    	    	    	    	    	    
171430	1986	    	    	    	    	    	    	    	    	    	    	    	    
171430	1987	    	    	    	    	    	    	    	    	    	    	    	    
171430	1988	    	    	  127	    	    	    	    	    	    	    	  262	  203
171430	1989	    	    	    	    	    	    	    	    	    	    8	  381	    
171430	1990	    	    	   38	    	    	    	    	    	    	    	    	    
171430	1991	  356	    	  152	    	    	    	    	    	    	    	  229	  229
171430	1992	    	    	    	    	    	    	    	    	    	    	    	    
171430	1993