Ranking With Groupings

how I could achieve a ranking number, where I have some grouping involved.I want to have the groups in sets of 4, but if I get to a new person the ranking increases, even if I haven't filled the group. For example:

Name Year Sales Ranking
-------------------- ----------- ----------- --------------------
John Smith 2009 1296 1
John Smith 2010 1296 1
John Smith 2011 1296 1
John Smith 2012 1296 1
John Smith 2013 1296 2

[code]....

So, when I get to John's 5 year, the Rank increased. I then only had two more rows before I get to Nina, but the Rank number goes up, as the details are for a different person from the prior user.

Select *, DENSE_RANK() over (Order by Name) + ((RANK() over (Partition by Name Order by Year) - 1) /4) as Ranking
from #Test
Order by Name, Year

Drop Table #TestThis works for John, but Nina then has a Ranking of 2 for her only year, where as she should be 3. Steve also then has a value one too low for all of his ranks.