1980
34.44
1981
27.74
1982
27.74
1983
27.74
1984
27.74
1985
27.74
1986
27.74
1987
27.74
1988
27.74
1989
27.74
1990
27.74
1991
11.55
199201
0.77
199202
0.77
199203
0.77
199204
0.77
199205
0.77
199206
0.77
199207
0.55
199208
0.55
199209
0.55
199210
0.55
199211
0.55
199212
0.55
199301
0.21
199302
0.21
199303
0.21
199304
0.21
199305
0.21
199306
0.21
199307
0.07
199308
0.07
199309
0.07
199310
0.0372
199311
0.0372
199312
0.0372
199401
0.021
199402
0.021
199403
0.021
199404
0.016
199405
0.016
199406
0.016
199407
0.0124
199408
0.0124
199409
0.0124
199410
0.01
199411
0.01
199412
0.01
199501
0.007
199502
0.007
199503
0.007
199504
0.0055
199505
0.0055
199506
0.0055
199507
0.0044
199508
0.0044
199509
0.0044
199510
0.003
199511
0.003
199512
0.003
199601
0.0024
199602
0.0024
199603
0.0024
199604
0.0022
199605
0.0022
199606
0.0022
199607
0.002
199608
0.002
199609
0.002
199610
0.002
199611
0.002
199612
0.002
1997
2.03
1998
1.864
1999
1.51
2000
1.2
2001
1.9
2002
0.89
2003
0.9
2004
0.94
2005
0.98
2006
0.99
2007
1
2008
1
2009
1
2010
1
2011
1
2012
1
2013
1
2014
1
2015
1
*****