Year	All Stations Annual Mean Zooplankton Biomass (g(ww)/m²)	Total Number of Sampled Stations^@	Annual Mean C.V. ×10⁻² (see text)*
1969	42	204	50
1970	51	131	50
1971	41	109	42
1972	33	132	43
1973	39	105	42
1974	36	125	47
1975	28	95	40
1976	32	85	38
1977	35	74	41
1978	33	74	36
1979	33	71	33
1980	36	73	45
1981	27	69	48
1982	32	75	39
1983	23	102	49
1984	25	84	34
1985	19	157	59
	Grand Mean 33	Total Number of Sampled Stations:1765	Grand Mean 43