Some groups have an inherently high viewership due to the popularity of their subject, or the popularity of the guru leading it. The Strobist group always gets lots of passive views due to the sheer number of members and a very wide interest in the subject of the group. Some tags are also inherently searched more often than others.
If you have a Pro account you can see where your views are coming from on a daily basis, if you've some groups producing strong view counts they will stand out in the Flickr referrals. You'll see them as direct views from Group pool pages, or links from other images in that Group pool. It takes a bit of practice to understand them.
But, if you're struggling to find anything meaningful in the stats and can't pick out individual groups.. you need to ask yourself if you're dumping too much into too many crap groups at the same time. I haven't looked at your stream so this isn't judgement on your images, but it's not unusual to find people uploading every shot they take and dumping everything they upload into forty dump'n'run groups, when being more selective and relevant with three or four groups would be a far better approach to take.
Some groups are set up to farm views for your ego spinach statistics. If you want hollow high view statistics look for any of the P1C3, P1F5, P1A3 type groups and go along with their rules. I don't have any time for this type of group myself.
In terms of Flickr, if you want views, favourites and comments, the old adage that you get out what you put in is the truth. And being an active participant in three groups will get you more useful feedback than being a non-participant in fifty groups.
(Martyn, there's a breed of group that are farming views very effiicently to gain Explore, and once in Explore they're dropping out of these groups completely so you only see the stupidly high view count, very few tags and no groups - I can only assume this is the reason why there are so many BJD images in Explore the last couple of months)