"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
170177	1970	    	    	    	    	    	    	    	    	    	    	    	    
170177	1971	    	    	    	    	    	    	    	    	    	    	    	    
170177	1972	    	    	    	    	    	    	    	    	    	    	    	    
170177	1973	    	    	    	    	    	    	    	    	    	    	    	    
170177	1974	    	    	    	    	    	    	    	    	    	    	    	    
170177	1975	    	    	    	    	    	    	    	    	    	    	    	    
170177	1976	    	    	    	    	    	    	    	    	    	    	    	    
170177	1977	    	    	    	    	    	    	    	    	    	    	    	    
170177	1978	    	    	    	    	    	    	    	    	    	    	    	    
170177	1979	    	    	    	    	    	    	    	    	    	    	    	    
170177	1980	    	    	    	    	    	    	    	    	    	    	    	    
170177	1981	    	    	    	    	    	    	    	    	    	    	    	    
170177	1982	    	    	    	    	    	    	    	    	    	    	    	    
170177	1983	    	    	    	    	    	    	    	    	    	    	    	    
170177	1984	    	    	    	    	    	    	    	    	    	    	    	    
170177	1985	    	    	    	    	    	    	    	    	    	    	    	    
170177	1986	    	    	    	    	    	    	    	    	    	    	    	    
170177	1987	    	    	    	    	    	    	    	    	    	    	    	    
170177	1988	    	    	    	    	    	    	    	    	    	    	    	    
170177	1989	    	    	    	    	    	    	    	    	    	    	    	    
170177	1990	    	    	    	    	    	    	    	   87	   73	  190	  135	  171
170177	1991	   74	   23	  156	   66	   88	  104	   50	  239	  120	   76	  101	   73
170177	1992	  108	   77	  153	   67	   15	   66	   97	   73	   62	   96	   93	   46
170177	1993	   54	   93	   94	  153	   31	  103	   44	   41	  104	   80	  108	  136