1981 10 19.92 -99.99 -99.99 
2000 01  4.08  -1.24   1.42 
2000 03  8.84   1.66   5.25 
2000 04 16.12   9.01  12.56 
2000 05 21.75  11.58  16.66 
2000 06 23.87  15.45  19.66 
2000 07 28.40  18.82  23.61 
2000 08 28.97  19.34  24.15 
2000 09 22.52  13.57  18.04 
2000 10 17.37   8.30  12.83 
2000 11 15.07   7.79  11.43 
2001 01  7.40   1.15   4.27 
2001 02  7.48   1.04   4.26 
2001 03 11.01   3.96   7.48 
2001 06 22.76  14.93  18.84 
2001 07 30.20  21.62  25.91 
2001 08 29.85  19.82  24.83 
2001 09 23.87  14.64  19.25 
2001 10 17.73   8.26  12.99 
2001 12  5.58 -99.99 -99.99 
2003 01  7.37   2.14   4.75 
2003 02  4.39  -1.30   1.54 
2003 03  7.16    . 1   3.58 
2003 04 11.60   4.48   8.04 
2003 05 21.52  12.64  17.08 
2003 06 25.42  15.34  20.38 
2003 07 25.63  16.84  21.23 
2003 08 28.22  17.85  23.03 
2003 09 23.29  13.59  18.44 
2003 10 17.20   9.17  13.19 
2003 11 12.18   5.93   9.05 
2003 12  8.56   2.16   5.36 
2004 01  8.58   2.46   5.52 
2004 02  7.69    .19   3.94 
2004 03 10.64   3.25   6.94 
2004 04 14.70   6.16  10.43 
2005 02 99.99   1.04 -99.99 
2005 03 99.99    .58 -99.99 
2005 11 99.99   6.24 -99.99 
2005 12 99.99   3.71 -99.99 
2006 02 99.99   -.97 -99.99 
2006 06 99.99  16.20 -99.99 
2007 02 99.99    .50 -99.99 
2008 07 28.41  19.04  23.73 
