Figure 6

Google Trends time series, original, filtered and reconstructed for 6 countries. For each country we plot: the raw values from Google Trends (green), the filtered trend (red), and the reconstructed trend after the NMF (blue). In the first row we show 2 examples of high developed countries (H) with fluctuating trends. In the second and third row we report examples of countries with upper middle (UM) and lower middle (LM) development index and a growing trend of adoption. The blue line is present but hidden under the red one due to the goodness of the approximation