anchor.diff:  "Tuvalu",TV,1992,0.854092790033695
   "Tuvalu",TV,1991,0.81380018323806
   "Tuvalu",TV,1990,0.819102865865772
  -"Uganda",UG,2013,1047.01738494971
  -"Uganda",UG,2012,1016.81140063194
  +"Uganda",UG,2013,1015.68442471842
  +"Uganda",UG,2012,989.811186714958
   "Uganda",UG,2011,833.540477569221
  -"Uganda",UG,2010,810.121784374208
  -"Uganda",UG,2009,748.566617610315
  -"Uganda",UG,2008,658.539870786259
  -"Uganda",UG,2007,631.081443334375
  -"Uganda",UG,2006,603.709114504759
  -"Uganda",UG,2005,607.645429463801
  -"Uganda",UG,2004,638.308012324444
  -"Uganda",UG,2003,567.401247207308
  -"Uganda",UG,2002,536.803699730337
  -"Uganda",UG,2001,562.880349239614
  -"Uganda",UG,2000,550.727056441094
  -"Uganda",UG,1999,506.924023591936
  -"Uganda",UG,1998,514.763287570121
  -"Uganda",UG,1997,478.322754550169
  -"Uganda",UG,1996,471.945704948708
  -"Uganda",UG,1995,459.534549880921
  -"Uganda",UG,1994,428.912831825557
  -"Uganda",UG,1993,409.947846522039
  -"Uganda",UG,1992,322.518873513576
  -"Uganda",UG,1991,227.393067184081
  -"Uganda",UG,1990,186.425277933193
  +"Uganda",UG,2010,811.520612853673
  +"Uganda",UG,2009,728.007208346534
  +"Uganda",UG,2008,558.72787387884
  +"Uganda",UG,2007,535.431199720096
  +"Uganda",UG,2006,512.207574593463
  +"Uganda",UG,2005,515.54727957648
  +"Uganda",UG,2004,541.562469376213
  +"Uganda",UG,2003,481.402731331409
  +"Uganda",UG,2002,455.442719790725
  +"Uganda",UG,2001,477.567046019986
  +"Uganda",UG,2000,467.255774450796
  +"Uganda",UG,1999,430.091774978035
  +"Uganda",UG,1998,436.742876134245
  +"Uganda",UG,1997,405.825474712902
  +"Uganda",UG,1996,400.414966520115
  +"Uganda",UG,1995,389.884915735009
  +"Uganda",UG,1994,363.904397039776
  +"Uganda",UG,1993,347.813851297781
  +"Uganda",UG,1992,273.636103866538
  +"Uganda",UG,1991,192.928098354895
  +"Uganda",UG,1990,158.169617055132
   "Ukraine",UA,2013,3.63866684586866
   "Ukraine",UA,2012,3.64911975663597
   "Ukraine",UA,2011,3.43429756338812
  
positive.code: "Mauritius",MU,1992,8.23214275674957
  "Mauritius",MU,1991,7.99189726440317
  "Mauritius",MU,1990,7.60549891076141
  "Mexico",MX,2013,7.996202335
  "Mexico",MX,2012,7.986972422
  "Mexico",MX,2011,7.673013104
  "Mexico",MX,2010,7.650746081
  "Mexico",MX,2009,7.444592617
  "Mexico",MX,2008,7.469531893
  "Mexico",MX,2007,7.374892827
  "Mexico",MX,2006,7.169129987
  "Mexico",MX,2005,7.126861706
  "Mexico",MX,2004,7.219588057
  "Mexico",MX,2003,6.812737037
  "Mexico",MX,2002,6.553696931
  "Mexico",MX,2001,6.304643728
  "Mexico",MX,2000,6.094113997
  "Mexico",MX,1999,5.63367
  "Mexico",MX,1998,4.963132811
  "Mexico",MX,1997,4.348628243
  "Mexico",MX,1996,3.757448137
  "Mexico",MX,1995,2.926372183
  "Mexico",MX,1994,2.167079224
  "Mexico",MX,1993,2.044125272
  "Mexico",MX,1992,1.91132867
  "Mexico",MX,1991,1.708677072
  "Mexico",MX,1990,1.432455237
  "Micronesia, Fed. Sts.",FM,2013,0.899671710933124
  "Micronesia, Fed. Sts.",FM,2012,0.904018747751406
  "Micronesia, Fed. Sts.",FM,2011,0.879293960153449
  
negative.code: "Lithuania",LT,1992,0.125868350813548
  "Lithuania",LT,1991,0.0123513628265042
  "Lithuania",LT,1990,0.00388651288040604
  "Luxembourg",LU,2013,0.915436
  "Luxembourg",LU,2012,0.898388
  "Luxembourg",LU,2011,0.894494
  "Luxembourg",LU,2010,0.922341
  "Luxembourg",LU,2009,0.906982
  "Luxembourg",LU,2008,0.90623
  "Luxembourg",LU,2007,0.924478
  "Luxembourg",LU,2006,0.913871
  "Luxembourg",LU,2005,0.952896
  "Luxembourg",LU,2004,0.922347
  "Luxembourg",LU,2003,0.940523
  "Luxembourg",LU,2002,0.934383
  "Luxembourg",LU,2001,0.947747
  "Luxembourg",LU,2000,0.93937
  "Luxembourg",LU,1999,0.941359
  "Luxembourg",LU,1998,0.948465
  "Luxembourg",LU,1997,0.958673
  "Luxembourg",LU,1996,0.947453
  "Luxembourg",LU,1995,0.948725
  "Luxembourg",LU,1994,0.946441
  "Luxembourg",LU,1993,0.933514
  "Luxembourg",LU,1992,0.901858
  "Luxembourg",LU,1991,0.889254
  "Luxembourg",LU,1990,0.902406
  "Macao SAR, China",MO,2013,5.11945544182844
  "Macao SAR, China",MO,2012,4.82835118540608
  "Macao SAR, China",MO,2011,4.58854520828375
  