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数据如下,还是要靠市场自身的规律了。
1 X; s3 W1 D% ^9 @' H( ^$ n+ c' {% {% z7 n9 Q- }
19910701 -.52( W Z1 D3 c7 ]+ `
19920701 .25
7 c+ ~7 y( R: Y+ N, Q# \19930701 -.95- o* P+ n0 U% O0 b4 N8 A7 w& ]; p& B% Z
19940701 -2.33
9 f& b$ I2 j; Y5 w5 V! F19960701 -5.36
7 k/ \5 y; E& k2 q( V19980701 -1.70: ] \# G9 x. T6 o4 R* B
19990701 -7.61
# s: C8 P: Y8 [- ?2 g20020701 -1.10
1 G0 V7 k2 j; A1 W. g20030701 -.09
: l4 n4 W1 v+ H; g/ Q3 z2 `20040701 3.002 a8 D; I4 {7 j
20050701 -2.35
9 k8 [. z* @1 @: A( G! Z20080701 -3.095 s8 _1 ?# f _+ W3 U8 j/ i+ M3 _
20090701 1.65 \6 t9 A1 X- Y
20100701 -1.02
% N v4 h5 C7 N V20110701 -.10- U/ r; T/ Y# l$ e# ?
20130701 .819 \8 |* m/ m" \# r. s
20140701 .10 |