Table 1. Top drought year based on the spatial extent (%) estimated using domain mean drought indices for every month in the crop periods from 1981–2013.

Emergence					Heading				Anthesis			Maturity
Year	Oct.	Year	Nov.	Year	Dec.	Year	Jan.	Year	Feb.	Year	Mar.	Year	Apr.
Meteorological Drought
2000	53.5	1996	4.4	1998	11.3	2007	86.2	2006	71.1	2004	56.0	1989	30.8
Hydrological Drought
2000	97.5	1983	98.7	1998	100	2007	95.0	2006	98.7	1994	95.6	1999	95.0
Soil Moisture Drought
1989	87.4	1989	85.5	1989	74.8	1990	76.7	2001	99.4	1985	56.6	1999	49.1
Vegetation Drought
2000	81.8	2011	79.2	1993	83.0	1983	91.2	1985	82.4	1985	91.2	2010	73.6