0,35 1
0.30
~ Mercure
-
0,25
::
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~
0.15
0,10
0 ,05
- -
-
-
n -
-
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-
r-~ -
,_
-
I l
- -
-
~
i'
i•
-
o.oo
Il
' -
-- -
~
~
'--'
-
1979
1980
1981
15182
1913
IW
1985
1986
1987
19U
Hll9
1990
1991
4,0
3 ,5
3.0
.;
2,5
-
.!f 2.0
-
-
- - - -
~
1.5
1,0
0.5
-
-
1
-
-
~
~ I ~
-
i~ 1 1
fn
n
t1
o.o ~ --·
1
~
1979
19EIO
1981
1982
1983
1964
1985
1986
1981
11188
1919
1990
1991
3.5
3.0
2,5
2.0
::
-!f 1.5
-
~
1,0
0,5
0.0
1. ~ -50
40 l
30
~
!f
~
20
10
0
1979
.... ....
35 I
1
30 ~
25 - -
:: 20 - -
~ 15
10
1979
25
20
.;
~
15
!f
~
10
1979
1980
1981
1982
1963
1985
1986
1987
1988
1989
1990
1991
b
R
f
T
A
G
N
3000 1
2500
·:~~~~0
1979
1980
1981
19:82
19'3
1984
1985
1986
1947
1988
1989
1990
1991
200
150
19&8
1989
1990
1991
1200
1000
800
s - -
:;.
!f
~
L ~ ~ ~
1979
1980
1981
1982
""'
.... 1985 1986 1987 11i88 .... 1'90 ""
E
N
0
R
0