I am no expert just up the learning curve. But I got the right answer simply by reading for meaning.
1. Analytics firms report that globalInternet usage through mobile devicesrose to 8.5 percent in 2012,nearly twice the 2011 figure of 4.3 percent - rose to X nearly twice ... does not make sense. We are looking for a comparative inference / modifier.
2. Analytics firms report that globalInternet usage through mobile devicesrose to 8.5 percent in 2012, nearly doubling the 2011 figure of 4.3 percent
...
1. Analytics firms report that globalInternet usage through mobile devicesrose to 8.5 percent in 2012,nearly twice the 2011 figure of 4.3 percent - rose to X nearly twice ... does not make sense. We are looking for a comparative inference / modifier.
2. Analytics firms report that globalInternet usage through mobile devicesrose to 8.5 percent in 2012, nearly doubling the 2011 figure of 4.3 percent
...
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