"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
170571	1970	    	    	    	    	    	    	    	    	    	    	    	    
170571	1971	    	    	    	    	    	    	    	    	    	    	    	    
170571	1972	    	    	    	    	    	    	    	    	    	    	    	    
170571	1973	    	    	    	    	    	    	    	    	    	    	    	    
170571	1974	    	    	    	    	    	    	    	    	    	    	    	    
170571	1975	    	    	    	    	    	    	    	    	    	    	    	    
170571	1976	    	    	    	    	    	    	    	    	    	    	    	    
170571	1977	    	    	    	    	    	    	    	    	    	    	    	    
170571	1978	    	    	    	    	    	    	    	    	    	    	    	    
170571	1979	    	    	    	    	    	    	    	    	    	    	    	    
170571	1980	    	    	    	    	    	    	    	    	    	    	    	    
170571	1981	    	    	    	    	    	    	    	    	    	    	    	    
170571	1982	    	    	    	    	    	    	    	    	    	    	    	    
170571	1983	    	    	    	    	    	    	    	    	    	    	    	    
170571	1984	    	    	    	    	    	    	    	    	    	    	    	    
170571	1985	    	    	    	    	    	    	    	    	    	    	    	    
170571	1986	    	    	    	    	    	    	    	    	    	    	    	    
170571	1987	    	    	    	    	    	    	   60	   55	  105	  137	   59	   73
170571	1988	   50	    	    	    	    	    	    	    	    	    	    	    
170571	1989	    	    	    	    	    	    	    	    	    	    	    	    
170571	1990	    	    	    	    	    	    	    	    	    	    	    	    
170571	1991	    	    	    	    	    	    	    	    	    	    	    	    
170571	1992	    	    	    	    	    	    	    	    	    	    	    	    
170571	1993