VM =k ibM
]i nn fi {i ih VM =k ibM hx Oh Mi VM nhS Ii   =tMi { +x VM  Vx Mb Px {f vh 15 S 5 J Ex E { =tM nhS  i` vh 25 V C] ii MbS ] {x i E  H CE {  =tMS =h E +lE =zivS BE +n n `i <.
{] 3  E` {E E  =tM E Vx  =tM  E +vi i =k Vbvn +.  =tMv |Sb VM ={v Ex nhS Ii +x BE C] ii Mb Ex 12 i 13 Ex |iI VM i.
iS Ex 10 BE Ijv Oh Mi <i EMx +|iIi V VM ={v > Ei.  =tMS E]E M{x M, i ` Oh Mi , i, Mb, b <. EMx +|iIi VM ={v i.
]v 1987 {x ] V Jn OtM b+iMi  Vx  Vi i. il{ 1 {] 1997 {x  =tMS ij SxS l{x Ehi + +x xS E  tM  Ji+iMi  =tMS E Si.
 =tMS ij SxS J E xM{ l +x tlii nx Mix ES Mh Ehi + +.
1)+i M n  `b
2){h M {h  xE M

{h M :
{h  xE  M` {h l SE S E +x  E+iMi J Vv  =tM Vx hi i.
1){h
2){
3)i
4)M
5)E{
6)+nxM
7)xE
8) v  Vv V  E +x n Vv .SE  ={SE S i  =tM E  iS E Sii.  =tM  +i: Oh Mi Vxi xMbi +x Oh Mi Ex {x  VM ={v > Ei.

 =tMS ix M {bii.
+. iiS Mb Ex E xh Eh
. E{x vM xh Eh.
E. vM{x E{b i Eh.
iE {i H { MS E E Vi.  Vx h iiS Mb Ex E]ES M{x Eh MVS +x iiS Mb i +.

iiS Mb :
iiS Mb Vx i +M] xi E Vi. ii Mb` h xi +xnxi ii {` Ehi i  xS ijE ESS MnxJ iiS Mb Ex Pi Vi.

iE |Ih:
ii Mb E iEx xi t ix n>x |Ih nhi i  |Ih Ei iES hS  xi Ehi i.

E]E M{x :
iiS M 3-4 xS Zxi  E]ES {E Pi Vi. {  Ex 3 i n {x 15 {i M |i 5 i 6  ES {E Pi i.  E {ES Ev vh BE xS +i  MS ES G E Vi. iEx =i{ni E  E xi V nx Jn Ehi ii  iES ES CE MS ix +n Ehi i.

x 97-98 ={v Z VM

+.G. V ii Ij |iI VM +|iI VM " BEh VM

1. {h 61 305 30 335

2. i 60 300 30 330

3. M 19 95 10 105

4. { 276 1380 138 1518

5. E{ 71 355 35 390

6. +.xM 48 240 24 264

7. xE 53 265 26 281

8. v 11 55 5 60

599 3095 298 3393

G& M

J{`

G& {f

- 
- ii