1989 28 7.7608e+011 6.0722e+011 4.7208e+011 3.6517e+011 2.8133e+011 1.4459e+011 7.3260e+010 1.8288e+010 4.4554e+009 1.0684e+009 2.5335e+008 5.9570e+007 1.3913e+007 3.2317e+006 1.7203e+005 9.0290e+003 4.6873e+002 2.4125e+001 1.2332e+000