数据如下,还是要靠市场自身的规律了。" ?& K7 e; p( f
. |& y1 N' h, M4 [; n
19910701 -.52& J. G8 n* _- D
19920701 .25
% j# p8 L! H' H' N4 j4 @) g19930701 -.959 t6 l+ D3 ~8 x# {( Y* [$ ?) p
19940701 -2.33
7 G9 u4 c$ S. T6 j! T19960701 -5.36" u/ y$ I6 R9 j- N8 T
19980701 -1.70& y6 z. L1 z$ I* ]0 B
19990701 -7.61
/ B, @! w- J; Z: {0 r20020701 -1.10
- V$ B" G0 E+ [& t/ x G( U4 v: P1 ]20030701 -.09' v$ r% s) t9 r
20040701 3.00- ]! A& x2 a% ]( K6 b$ R1 {
20050701 -2.354 k/ v# B% s/ c( _
20080701 -3.09- m ?; a( Z% W( }
20090701 1.656 r) {/ u5 S/ [6 F: _/ B
20100701 -1.02
# y% e! {$ `% ~) U20110701 -.10
# |( z( o/ t6 V f20130701 .815 x6 W6 s. W% t/ `7 e+ d' a
20140701 .10 |