Table 2.

Number of people (in millions) and number of country-basin units facing low water scarcity (<100%), moderate water scarcity (100–150%), significant water scarcity (150–200%) and severe water scarcity (>200%) for n months per year. Period: 1996–2005. UN adjusted population count for the target year 2000 from Center for International Earth Science Information Network (CIESIN)³⁹ was used.

Number of months per year (n)	Number of people (in millions) facing low, moderate, significant and severe water scarcity during n months per year				Number of country-basin units facing low, moderate, significant and severe water scarcity during n months per year
	Low water scarcity	Moderate water scarcity	Significant water scarcity	Severe water scarcity	Low water scarcity	Moderate water scarcity	Significant water scarcity	Severe water scarcity
0	44.35	1,483.91	1,738.13	926.41	12	465	485	233
1	166.81	336.55	602.71	257.14	32	60	48	89
2	94.19	176.54	149.03	230.22	5	28	21	64
3	44.29	520.70	14.99	563.34	11	7	3	38
4	58.37	0	12.28	101.62	12	0	2	51
5	454.10	0	0	28.52	7	0	0	18
6	27.35	0	0	43.07	17	0	0	9
7	55.22	0	0.56	125.11	23	0	1	6
8	68.76	0	0	158.36	40	0	0	9
9	176.56	0	0	4.19	45	0	0	4
10	354.55	0	0	0	69	0	0	3
11	217.96	0	0	34.72	83	0	0	24
12	755.19	0	0	44.39	204	0	0	12
Sum	2,517.7	2,517.7	2,517.7	2,517.7	560	560	560	560