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数据如下,还是要靠市场自身的规律了。
) v: T; S" q: C, {
1 J2 e& J- e W" c* ~( g19910701 -.52% s: C) j+ f$ E# I/ ]2 I$ p
19920701 .25
8 i# G) K1 [5 D5 X8 \19930701 -.95
" e+ H: ~& L" O2 _4 F) |* e$ a19940701 -2.335 I- U ]6 W* u
19960701 -5.36 e4 }: p/ e9 f0 [* c
19980701 -1.70
/ w0 Y- I' F1 B$ W" u: Y$ \19990701 -7.61# \7 m- I, @& C% r, `# r, X7 @+ N8 }
20020701 -1.100 n9 o: I I Q
20030701 -.09% H. M: D, Z y: m5 ]" Y
20040701 3.00$ x, s" G- Y9 I2 R/ r$ r2 ?
20050701 -2.35# T+ r U/ d& Q, M
20080701 -3.09
+ W' R' J1 c+ {' B& @: x6 X20090701 1.65' D# e+ o: x7 Y' x
20100701 -1.02, y. T. |) ]7 w3 K; A- q
20110701 -.10
# Z4 F p9 F( _& q) b3 l' x0 @20130701 .81% @3 K7 o' ^" k0 q
20140701 .10 |