Class	Ammonium < 0.04	Ammonium >= 0.04, <0.1	Ammonium >=0.1, <0.2	Ammonium >=0.2, <0.4	Ammonium >=0.4	Sites Ammonium	< 0.04	>= 0.04, <0.1	>=0.1, <0.2	>=0.2, <0.4	>=0.4	BOD <1.4	BOD >=1.4, <2	BOD >=2, <3	BOD >=3, <4	BOD >=4	Sites BOD	<1.4	>=1.4, <2	>=2, <3	>=3, <4	>=4
Black Sea basin (14)	0	1	0	2	11	14	0	7.142857143	0	14.28571429	78.57142857	3	9	2	0	0	14	21.42857143	64.28571429	14.28571429	0	0
Caspian Sea basin (34)	0	0	5	23	6	34	0	0	14.70588235	67.64705882	17.64705882	12	15	5	2	0	34	35.29411765	44.11764706	14.70588235	5.882352941	0