When was detected Breadcrumb Navigation Google?

When was detected Breadcrumb Navigation Google? 

There are a few questions from some fellow bloggers concerning the navigation breadcrumbs detected when google? Personal Squire had indeed curious.

For that as a blogger who is still learning, skipper tried to grope google search results pages.

Based on some facts on the ground (page SERP), found some evidence regarding when the breadcrumbs that have been posted on the
site will be detected google.

Here are the results: 

For a blog that has been fitted with breadcrumbs to generate google snippets (ie a title, description and url in the search results page) is more interesting, the blog at least has a PageRank 3 and above.
With language that is easier, if my friend wants to have search results like these: 

Condition, in addition to already installed breadcrumbs, Pagerank blog should be greater than or equal to PR 3

Really? Is there any proof?

Here are examples of blogs that it has detected breadcrumbs google:
abibakarblog.com. Pagerank 4
optimization-blog.blogspot.com. Pagerank 3
column-tutorial.blogspot.com. Pagerank 3
etc. are still a lot.
Maybe there are some blogs that bosses or colleagues of other bloggers already have pagerank found above 3. But why have not detected breadcrumbsnya google? There are several reasons, one thing most likely to cause this is the template structure is poor or lacking.

One thing is for sure, Until the time this article was posted, Squire has never found a blog that has a pagerank under 3 but breadcrumbsnya been detected. That is, perhaps almost impossible a blog, say berpagerank 2, has a beautiful snippet google page navigation breadcrumbsnya google search results.

Similarly, analysis of post masters this time. If there are elders who happens to read this and disagree please be corrected and straightened.

Or there are other opinions about this or just want to complete? I really appreciate it, Squire invite in the comments section greetings

Update: In addition to the mas Abibakar 
... Just as, according to my observations Google seems more familiar with breadcrumbs separator like this> than / or>>

Because several times I prove it on my blog the other when separatornya other than that, Google does not show it but after I change a> few moments later appeared and seemed quite right about homework, I blog2 reply to breadcrumbs are generally above PR 3 ...
Note: Breadcrumbs are one type of navigation such as Home> SEO Blogspot> Title of the article. Usually located above the post title.
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