The graph shown is the worldwide search history of Pepsi.
This graph shows the interest in Pepsi in the United states over the past 12 months. With the graph it is clear that the most interest is shown in April 2-8th.
This graph shows the searches for Pepsi over the last 12 months in California. It is very similar to the last graph however the searches before and after the spike in early April is a bit less in this graph.
This graph shows the searches for Pepsi in California and with the filter of Food and Drink, which helps narrow down the search history. The graph looks relatively the same.