"station_id"	"year"	"Jan"	"Feb"	"Mar"	"Apr"	"May"	"Jun"	"Jul"	"Aug"	"Sep"	"Oct"	"Nov"	"Dec"
171833	1970	    	    	    	    	    	    	    	    	    	    	    	    
171833	1971	    	    	    	    	    	    	    	    	    	    	    	    
171833	1972	    	    	    	    	    	    	    	    	    	    	    	    
171833	1973	    	    	    	    	    	    	    	    	    	    	    	    
171833	1974	    	    	    	    	    	    	    	    	    	    	    	    
171833	1975	    	    	    	    	    	    	    	    	    	    	    	    
171833	1976	    	    	    	    	    	    	    	    	    	    	    	    
171833	1977	    	    	    	    	    	    	    	    	    	    	    	    
171833	1978	    	    	    	    	    	    	    	    	    7	  127	   54	   55
171833	1979	  186	    	    	    	    	    	    	    	    	    	    	    
171833	1980	    	    	    	    	    	    	    	    	    	    	    	    
171833	1981	    	    	    	    	    	    	    	    	    	    	    	    
171833	1982	    	    	    	    	    	    	    	    	    	    	    	    
171833	1983	    	    	    	    	    	    	    	    	    	    	    	    
171833	1984	    	    	    	    	    	    	    	    	    	    	    	    
171833	1985	    	    	    	    	    	    	    	    	    	    	    	    
171833	1986	    	    	    	    	    	    	    	    	    	    	    	    
171833	1987	    	    	    	    	    	    	    	    	    	    	    	    
171833	1988	    	    	    	    	    	    	    	    	    	   97	  149	   24
171833	1989	   46	   60	   74	  112	  197	   79	   88	  148	   89	   68	  138	   54
171833	1990	  112	   52	   57	  101	  163	  110	   64	  135	   86	  143	  110	  175
171833	1991	   75	   31	  148	   71	   82	   42	   25	  220	  161	   98	   76	   66
171833	1992	  116	   80	   59	   35	    5	  105	  114	   60	   64	   92	   73	   41
171833	1993	   64	   89	   80	  135	   91	   85	   58	   19	  121	  119	   98	  173