|
数据如下，还是要靠市场自身的规律了。5 H+ h2 t8 C0 s; E( g
% z& \+ {& u4 P- g/ i2 [! |19910701 -.52
, t( q$ P, S( g" B# b19920701 .25
; i! S2 z' P/ b3 r! ^) [19930701 -.959 {; _1 y* B6 E% K
19940701 -2.33. l6 P2 `$ W: a' m) C7 }
19960701 -5.36
/ ]# [3 Z& `, y$ _! {1 a, A19980701 -1.70
q" N5 }5 `8 X+ x19990701 -7.61
: A \+ K1 N+ m! y* y3 }2 ~( g20020701 -1.10( b0 Z4 V1 Z/ j' H N" w
20030701 -.09( b. @4 O7 D0 m! K( p( S& i
20040701 3.00
}- [1 c3 X" D+ p5 f) m20050701 -2.35$ X# L* {4 m" L" q
20080701 -3.09
* p5 G, y) J6 l) G# i' e4 t% [20090701 1.655 M. p. z! D% `" h* U( l H( h
20100701 -1.02/ T' m8 ? U" a" _& ]" Z: l
20110701 -.10
* \3 x8 t( U4 E7 ^20130701 .81
. A* y$ Q) G3 N( g/ o! B8 F/ U/ h" H20140701 .10 | 
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发表于 2019-5-21 23:12:38