You'll need the relative frequency of the phrase (per running word of news article text), not the absolute count of it. In the extreme, if the "from" date of the google news search doesn't advance, you can only expect the number to increase :) Even if there's a fixed time window, you can also expect more words to be generated in the next year than in the past year.
As we did last year, use this thread to make predictions for the next year and next decade, with probabilities attached when practical.
Happy New Year, Less Wrong!