Google Trends and the Political Parties

So if you look at who is searching for the parties on google you get this snapshot:


But if you look at which websites are getting the most traffic (according to google) you get this:



So this tells me people are searching for information more about the NDP and the greens, but more people are visiting the Liberal and Conservative web pages. Now obviously the party websites are all the first items in google when you search, so shouldn't the search traffic correspond to the site traffic?

My working hypothesis is that there are obviously a large group of people out there who are not using search to get to the Liberal and Conservative web sites.

They are just going directly there. Without using google as an intermediary.

So this tells me that there are a large group of people who just go the the liberal and conservative homepages, do they have them bookmarked? Are these parties doing a better job or promoting their sites?

Or am I just missing something?