NGASANG												
	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC
1955	-2	-2	-2	-2	-2	-2	277.368	268.986	262.382	263.652	296.672	212.344
1956	428.498	212.344	220.218	310.896	379.984	305.308	302.006	530.352	569.722	426.974	325.628	406.4
1957	115.316	56.642	142.494	346.71	205.232	265.43	306.324	420.878	310.134	312.928	146.304	172.212
1958	179.832	-2	-2	109.22	234.696	139.954	363.22	353.06	422.656	332.994	569.722	356.362
1959	139.7	66.802	269.748	260.096	352.806	147.066	456.946	347.98	244.348	351.028	324.104	246.888
1960	392.176	150.368	20.32	257.556	110.49	282.702	-2	427.482	294.64	317.246	216.662	217.678
1961	400.558	108.204	38.1	72.898	438.404	331.724	319.532	-2	322.326	413.512	86.614	281.686
1962	696.214	160.274	220.218	199.644	495.808	371.094	651.764	323.088	318.77	335.534	304.8	213.106
1963	505.714	226.822	118.11	50.292	294.386	382.27	338.074	399.796	275.336	385.064	172.212	287.02
1964	197.866	373.888	222.504	345.44	352.552	404.622	520.7	476.504	237.49	276.86	341.63	259.334
1965	173.736	277.876	241.046	36.576	249.682	417.322	488.442	252.476	173.228	98.806	92.964	161.544
1966	234.95	37.846	97.282	274.066	214.122	-2	378.968	276.352	245.11	485.648	231.902	402.844
1967	436.626	147.574	126.492	76.962	311.658	453.136	277.114	475.234	232.41	377.698	260.604	-2
1968	194.818	369.824	154.94	165.1	182.88	168.91	313.436	438.912	313.69	325.12	260.604	298.196
1969	105.156	46.736	128.524	187.706	-2	787.4	622.3	-2	-2	276.098	147.828	414.782
1970	351.79	79.248	88.138	88.646	119.38	352.044	612.648	374.904	173.228	198.374	64.008	277.622
1971	184.912	256.794	166.878	192.532	197.358	260.35	109.22	-2	200.914	622.046	240.792	245.364
1972	146.304	350.266	-2	-2	252.222	318.516	250.19	397.51	365.506	186.436	228.854	256.286