"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
272842	1970	    	    	    	    	    	    	    	    	    	    	    	    
272842	1971	    	    	    	    	    	    	    	    	    	    	    	    
272842	1972	    	    	    	    	    	    	    	    	    	    	    	    
272842	1973	    	    	   30	    	    	    	    	    	    	    	    	    
272842	1974	    	    	    	    	   13	    	    	    	    	    	    	    
272842	1975	    	    	    	    	    	    	    	    	    	    	    	    
272842	1976	  158	  940	  813	    	    	    	    	    	    	   38	    	    
272842	1977	    	  412	  330	  254	    	    	    	    	    	    	    	  838
272842	1978	  940	  508	  724	  216	    	    	    	    	    	    	  279	  737
272842	1979	 1041	  102	   76	  584	    	    	    	    	    	    	    	  231
272842	1980	  178	  368	  559	  102	    	    	    	    	    	    	    	  432
272842	1981	  216	  203	  292	    	    	    	    	    	    	    	  114	  792
272842	1982	  775	  508	  597	  241	    	    	    	    	    	    	    	   51
272842	1983	  432	  597	  318	  305	    	    	    	    	    	    	    	    
272842	1984	    	    	    	    	    	    	    	    	    	    	    	    
272842	1985	    	    	    	    	    	    	    	    	    	    	    	    
272842	1986	    	    	    	    	    	    	    	    	    	    	    	    
272842	1987	    	    	    	    	    	    	    	    	    	    	    	    
272842	1988	    	    	    	    	    	    	    	    	    	    	    	    
272842	1989	    	    	    	    	    	    	    	    	    	    	    	    
272842	1990	    	  632	  203	   25	    	    	    	    	    	    	  368	  457
272842	1991	  777	  229	   76	    	    	    	    	    	    	    	   76	  444
272842	1992	  102	    	  279	  178	    	    	    	    	    	    	    	    
272842	1993	  483	 1194	  787	  152	    	    	    	    	    	    	    	  305