Table 1

Year
190
191
192
193
194
195
196
197
198
199
0:
N
C
N
W
W
N
N
C
N
N
1:
N
W
N
N
N
W
N
C
N
W
2:
W
N
C
N
C
N
N
W
W
N
3:
C
W
N
N
N
N
W
C
N
N
4:
W
N
C
N
C
C
C
N
N
N
5:
W
N
W
N
N
C
W
C
N
N
6:
C
C
N
N
N
C
N
W
W
N
7:
N
N
N
N
N
W
C
N
W
W
8:
C
W
N
C
N
N
N
N
C
9:
C
N
W
N
C
N
W
N
N

Table 1 List of ENSO years, based on the JMA-SST Index. The column indicates the decade, and the row indicates year. 'W' indicates a warm phase, 'C' indicates a cold phase, and 'N' indicates neutral conditions.