"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
170655	1970	    	    	    	    	    	    	    	    	    	    	    	    
170655	1971	    	    	    	    	    	    	    	    	    	    	    	    
170655	1972	    	    	    	    	    	    	    	    	    	    	    	    
170655	1973	    	    	    	    	    	    	    	    	    	    	    	    
170655	1974	    	    	    	    	    	    	    	    	    	    	    	    
170655	1975	    	    	    	    	    	    	    	    	    	    	    	    
170655	1976	    	    	    	    	    	    	    	    	    	    	    	    
170655	1977	    	    	    	    	    	    	    	    	    	    	    	    
170655	1978	    	    	    	    	    	    	    	    	    	    	  216	  610
170655	1979	 1118	  279	   76	  457	    	    	    	    	    	  152	    	  152
170655	1980	  102	  356	  508	   51	    	    	    	    	    	    	  457	  457
170655	1981	  279	  178	  203	    	    	    	    	    	    	    	  127	  559
170655	1982	  686	  254	  381	  305	    	    	    	    	    	    	  241	  229
170655	1983	  229	    	    	    	    	    	    	    	    	    	    	    
170655	1984	    	    	    	    	    	    	    	    	    	    	    	    
170655	1985	    	    	    	  305	    	    	    	    	    	    	  198	  506
170655	1986	  744	  396	  376	   89	    	    	    	    	    	    	  229	  206
170655	1987	  978	  165	  381	  173	    	    	    	    	    	    	    	  444
170655	1988	  625	  643	  114	    	    	    	    	    	    	    	    	  216
170655	1989	  521	  277	  472	   51	    	    	    	    	    8	    	  485	  559
170655	1990	  521	  419	  178	    8	    	    	    	    	    	    	   51	  345
170655	1991	  711	  198	  406	   51	    	    	    	    	    	    	    8	  478
170655	1992	  152	  698	  114	  178	    	    	    	    	    	    	   33	   71
170655	1993	  185	  930	 1054	  292	    	    	    	    	    	    	   51	  279