month-year	TAI	TII
Jan-48	-79.38	157.75
Feb-48	-60	84.9
Mar-48	-999	-999
Dec-48	-63.13	52.4
Jan-49	-999	-999
Feb-49	-96.88	42.2
Mar-49	-73.75	103.8
Dec-49	-93.75	59.5
Jan-50	-999	-999
Feb-50	-68.13	117.45
Mar-50	-68.13	89.2
Dec-50	-82.5	238.3
Jan-51	-86.25	103.4
Feb-51	-76.25	97.8
Mar-51	-84.38	54.2
Dec-51	-89.38	95.05
Jan-52	-999	-999
Feb-52	-70	143.85
Mar-52	-57.5	44.25
Dec-52	-68.75	92.2
Jan-53	-81.88	123.1
Feb-53	-76.25	110
Mar-53	-68.13	84.25
Dec-53	-84.38	145.6
Jan-54	-72.5	130.8
Feb-54	-78.75	187.6
Mar-54	-74.38	101.6
Dec-54	-74.38	209.5
Jan-55	-65	136.25
Feb-55	-93.13	75.2
Mar-55	-67.5	62.1
Dec-55	-61.25	189.7
Jan-56	-70	127.55
Feb-56	-69.38	101.2
Mar-56	-70.63	120.95
Dec-56	-76.88	110.25
Jan-57	-69.38	123.9
Feb-57	-56.88	47.95
Mar-57	-53.13	71.65
Dec-57	-84.38	152.45
Jan-58	-78.13	159.05
Feb-58	-71.25	196.65
Mar-58	-51.25	105.05
Dec-58	-70	186.1
Jan-59	-68.75	119.7
Feb-59	-60	151.65
Mar-59	-70	84.1
Dec-59	-73.13	117.2
Jan-60	-56.25	152.35
Feb-60	-78.75	51.75
Mar-60	-64.38	147.25
Dec-60	-75.63	221.4
Jan-61	-68.75	228.85
Feb-61	-51.88	170.3
Mar-61	-56.25	163
Dec-61	-48.13	97.7
Jan-62	-78.75	161.95
Feb-62	-74.38	118.05
Mar-62	-52.5	159.75
Dec-62	-74.38	175.35
Jan-63	-85.63	177.25
Feb-63	-75.63	211.2
Mar-63	-50.63	105.65
Dec-63	-72.5	206.6
Jan-64	-70.63	48.55
Feb-64	-66.88	102.7
Mar-64	-85.63	46.2
Dec-64	-89.38	64.35
Jan-65	-73.13	154.1
Feb-65	-75.63	79.55
Mar-65	-55.63	140.9
Dec-65	-64.38	141.75
Jan-66	-50.63	94.75
Feb-66	-40.63	104.35
Mar-66	-76.25	87.55
Dec-66	-83.13	106.95
Jan-67	-83.75	105.25
Feb-67	-77.5	173.35
Mar-67	-63.75	167
Dec-67	-97.5	100.95
Jan-68	-63.13	116.2
Feb-68	-73.13	249.7
Mar-68	-68.13	115.25
Dec-68	-73.13	99.9
Jan-69	-999	-999
Feb-69	-69.38	123.25
Mar-69	-71.88	109.65
Dec-69	-75	218.15
Jan-70	-65	101.1
Feb-70	-78.75	223.5
Mar-70	-71.88	93.95
Dec-70	-61.88	159.1
Jan-71	-71.88	128.35
Feb-71	-86.25	123.1
Mar-71	-73.13	176.9
Dec-71	-72.5	144.8
Jan-72	-88.13	140.9
Feb-72	-73.75	151.75
Mar-72	-76.88	153.8
Dec-72	-85.63	54.65
Jan-73	-63.13	106.6
Feb-73	-73.75	186.25
Mar-73	-999	-999
Dec-73	-87.5	134.6
Jan-74	-999	-999
Feb-74	-72.5	151.55
Mar-74	-63.13	100.85
Dec-74	-73.75	62.55
Jan-75	-88.75	118.75
Feb-75	-999	-999
Mar-75	-72.5	77.2
Dec-75	-80	120.85
Jan-76	-81.25	197.1
Feb-76	-71.25	112.15
Mar-76	-93.13	47.75
Dec-76	-78.13	229.8
Jan-77	-74.38	244.45
Feb-77	-74.38	146.95
Mar-77	-58.13	76.35
Dec-77	-84.38	154.3
Jan-78	-76.25	220.3
Feb-78	-68.75	129.05
Mar-78	-70	147.35
Dec-78	-70.63	22.45
Jan-79	-88.13	129.25
Feb-79	-52.5	157.4
Mar-79	-73.13	77.85
Dec-79	-65	128.3
Jan-80	-66.25	93
Feb-80	-68.13	184.65
Mar-80	-64.38	104.4
Dec-80	-70.63	200.65
Jan-81	-71.25	325.35
Feb-81	-87.5	153.05
Mar-81	-55.63	118.25
Dec-81	-83.13	140.45
Jan-82	-76.88	125.7
Feb-82	-65	54
Mar-82	-999	-999
Dec-82	-92.5	74.95
Jan-83	-76.88	152.4
Feb-83	-65.63	102.1
Mar-83	-74.38	85.15
Dec-83	-88.13	137.2
Jan-84	-81.25	212.3
Feb-84	-84.38	105.85
Mar-84	-73.13	149.95
Dec-84	-98.13	61.75
Jan-85	-66.25	182.8
Feb-85	-85	89.1
Mar-85	-59.38	154.2
Dec-85	-80.63	206.6
Jan-86	-75.63	246.95
Feb-86	-63.13	87.5
Mar-86	-73.75	129.1
Dec-86	-71.88	58.1
Jan-87	-67.5	113.15
Feb-87	-58.13	237.8
Mar-87	-61.88	102.65
Dec-87	-56.88	110.15
Jan-88	-84.38	155.8
Feb-88	-82.5	230.4
Mar-88	-63.75	113.2
Dec-88	-70.63	150.5
Jan-89	-64.38	99.6
Feb-89	-81.25	131.85
Mar-89	-75.63	39.15
Dec-89	-66.25	116
Jan-90	-81.25	88.15
Feb-90	-65	87.35
Mar-90	-71.88	65.85
Dec-90	-96.25	108.95
Jan-91	-80	105.55
Feb-91	-71.25	145.75
Mar-91	-999	-999
Dec-91	-65.63	115.05
Jan-92	-65.63	129.6
Feb-92	-68.13	163.9
Mar-92	-69.38	192.3
Dec-92	-68.75	73.15
Jan-93	-999	-999
Feb-93	-70.63	211.75
Mar-93	-71.88	111.95
Dec-93	-78.13	167
Jan-94	-78.75	211.4
Feb-94	-72.5	59.35
Mar-94	-73.75	152.9
Dec-94	-999	-999
Jan-95	-75	107.6
Feb-95	-73.13	222.55
Mar-95	-62.5	132.95
Dec-95	-59.38	138.25
Jan-96	-84.38	129.15
Feb-96	-75.63	231.1
Mar-96	-73.75	115.3
Dec-96	-90	141.25
Jan-97	-74.38	122.95
Feb-97	-75.63	65.5
Mar-97	-61.25	156.85
Dec-97	-65.63	99.9
Jan-98	-80	57.6
Feb-98	-999	-999
Mar-98	-77.5	100.8
Dec-98	-80.63	56.4