日期	指数(美分/磅)	涨跌
20211117	131.25	0.51
20211116	130.74	-0.43
20211115	131.17	-0.37
20211112	131.54	0.36
20211111	131.18	-0.14
20211110	131.32	2.24
20211109	129.08	-0.31
20211108	129.39	0.41
20211105	128.98	-2.42
20211104	131.40	1.61
20211103	129.79	-2.61
20211102	132.40	4.18
20211101	128.22	0.61
20211029	127.61	3.27
20211028	124.34	1.87
20211027	122.47	0.24
20211026	122.23	0.3
20211025	121.93	2.32
20211022	119.61	-4.3
20211021	123.91	3.02