year month week-of-month week-of-year 
2010 12 5 1 
year month week-of-month week-of-year 
2011 1 1 1 
year month week-of-month week-of-year 
2011 1 2 2 
year month week-of-month week-of-year 
2011 1 3 3 
year month week-of-month week-of-year 
2011 1 4 4 
