year month week-of-month week-of-year 
2011 1 1 1 
year month week-of-month week-of-year 
2010 12 5 1 
year month week-of-month week-of-year 
2010 12 4 52 
year month week-of-month week-of-year 
2010 12 3 51 
year month week-of-month week-of-year 
2010 12 2 50 
