fix cdc data file

Author: bhoffman0

_static/datasets/StateData2020-CDC-Census.csv

@@ -38,7 +38,7 @@ Ohio,11622554,6.3,12.9,1524,39.1,4329,/nchs/pressroom/states/ohio/ohio.htm
 Oklahoma,3921207,16.5,19.6,766,21.5,813,/nchs/pressroom/states/oklahoma/oklahoma.htm
 Oregon,4085989,8.3,11.9,513,11.9,506,/nchs/pressroom/states/oregon/oregon.htm
 Pennsylvania,12787085,7.2,12,1555,37.9,4627,/nchs/pressroom/states/pennsylvania/pennsylvania.htm
-Puerto Rico,3406520,,,,,,
+Puerto Rico,3406520,-1,-1,-1,-1,-1,unknown
 Rhode Island,1057566,4.2,4.1,49,30.8,326,/nchs/pressroom/states/rhodeisland/rhodeisland.htm
 South Carolina,4959822,10,17.7,891,18.1,879,/nchs/pressroom/states/southcarolina/southcarolina.htm
 South Dakota,861542,8.7,13.4,108,8.4,69,/nchs/pressroom/states/southdakota/southdakota.htm