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数据如下,还是要靠市场自身的规律了。
8 m" v* ^* T/ t \
+ Q% y3 R5 W2 y0 j% P19910701 -.52
% u3 {6 B- N' i( g2 L4 S19920701 .25
' \( C$ a( e6 z! I19930701 -.958 L9 D9 T& ~( j8 `
19940701 -2.33
6 l. n: A! R+ Y0 Y3 A19960701 -5.36" p* ]" K: T2 {) i
19980701 -1.70
- h& C# i- J; k19990701 -7.61* { \1 Q0 N" u9 u3 ^
20020701 -1.10
# \! }* }. ]8 P# T5 x) k20030701 -.09
8 M2 Q! Q8 h, ]% a3 C; @! T20040701 3.009 J1 X2 k6 A$ Y% w2 W$ @
20050701 -2.35
5 ?0 ?2 x3 p4 P1 V7 b' a. A3 B2 ?+ G20080701 -3.09: g. j; L6 }* N
20090701 1.65
) v$ m; e! E0 l. t' h p% f20100701 -1.023 J2 Q4 x9 g9 c9 A3 E
20110701 -.10
! d. K( H# H9 c* ^9 i5 L$ r( R20130701 .81
2 O9 v. F g1 [! G$ n" O! `20140701 .10 |