(Per cent per annum)
Year / Month
1-month
3-month
6-month
1
2
3
4
2010
2012
Apr
3.47
3.43
3.39
Jun
7.48
6.87
5.90
May
3.44
2.88
2.60
Jul
7.93
7.21
6.52
4.40
3.72
3.22
Aug
7.84
7.37
6.86
5.26
4.73
4.12
Sep
7.41
6.90
6.51
5.69
5.38
4.86
Oct
7.54
6.78
6.33
6.00
5.75
5.36
Nov
7.04
6.42
6.06
7.85
6.94
6.50
Dec
7.53
6.74
6.57
7.18
5.95
2013
7.05
6.59
6.34
Jan
7.43
7.17
6.71
2011
Feb
7.01
7.76
7.24
6.79
6.41
Mar
8.79
7.87
7.27
6.66
6.35
7.74
7.50
8.03
7.31
6.89
6.85
6.46
7.42
7.38
6.77
6.68
6.54
8.36
7.83
7.47
6.65
6.67
6.40
10.35
9.52
8.71
6.96
6.63
6.39
10.65
9.56
8.55
3.69
4.13
3.94
9.24
9.12
8.46
4.64
4.35
3.41
9.08
8.93
5.92
4.95
3.83
9.28
8.78
8.58
5.20
4.24
2014
8.04
6.64
5.96
8.60
8.52
8.17
8.31
8.44
8.89
7.81
6.80
10.54
9.26
8.74
8.94
8.64
8.41
10.09
7.40
8.43
8.28
8.11
7.73
8.75
7.22
8.92
8.73
8.70
Note : Market-based exchange rate system was introduced from March 1, 1993.