year	mth	rate
1991	1	3.2515
1991	2	3.2641
1991	3	3.0746
1991	4	2.9697
1991	5	2.9416
1991	6	2.8617
1991	7	2.9129
1991	8	2.935
1991	9	2.9788
1991	10	3.0586
1991	11	3.157
1991	12	3.3
1992	1	3.3366
1992	2	3.28
1992	3	3.146
1992	4	3.2449
1992	5	3.3782
1992	6	3.4206
1992	7	3.5104
1992	8	3.5979
1992	9	3.4114
1992	10	3.0634
1992	11	2.9352
1992	12	3.0095
1993	1	2.9883
1993	2	2.7876
1993	3	2.756
1993	4	2.8653
1993	5	2.8526
1993	6	2.7954
1993	7	2.723
1993	8	2.7012
1993	9	2.766
1993	10	2.7182
1993	11	2.7048
1993	12	2.6793
1994	1	2.6541
1994	2	2.5746
1994	3	2.6127
1994	4	2.604
1994	5	2.5776
1994	6	2.5805
1994	7	2.5747
1994	8	2.565
1994	9	2.5963
1994	10	2.6368
1994	11	2.5574
1994	12	2.4467
1995	1	2.459
1995	2	2.4773
1995	3	2.4739
1995	4	2.409
1995	5	2.3775
1995	6	2.3819
1995	7	2.3653
1995	8	2.3839
1995	9	2.3758
1995	10	2.3938
1995	11	2.3954
1995	12	2.3685
1996	1	2.3107
1996	2	2.2753
1996	3	2.2439
1996	4	2.2196
1996	5	2.209
1996	6	2.2766
1996	7	2.2493
1996	8	2.2489
1996	9	2.2367
1996	10	2.2626
1996	11	2.3415
1996	12	2.3582
1997	1	2.3642
1997	2	2.3507
1997	3	2.3022
1997	4	2.3528
1997	5	2.3605
1997	6	2.3927
1997	7	2.5273
1997	8	2.4931
1997	9	2.5156
1997	10	2.5681
1997	11	2.7048
1997	12	2.8022
1998	1	2.8173
1998	2	2.8113
1998	3	2.9018
1998	4	3.019
1998	5	3.0398
1998	6	3.2179
1998	7	3.1659
1998	8	3.2604
1998	9	3.3321
1998	10	3.2486
1998	11	3.1101
1998	12	3.1968
1999	1	3.0618
1999	2	2.9931
1999	3	3.0472
1999	4	2.9623
1999	5	2.9241
1999	6	2.9914
1999	7	2.9933
1999	8	3.0499
1999	9	3.1062
1999	10	3.2221
1999	11	3.1621
1999	12	3.1764
2000	1	3.2023
2000	2	3.2613
2000	3	3.2223
2000	4	3.1891
2000	5	3.1817
2000	6	3.2068
2000	7	3.2776
2000	8	3.3447
2000	9	3.4344
2000	10	3.6214
2000	11	3.5647
2000	12	3.4069