Dear experts,

I have a table like this:

Year Violation Year

2010 2005,2006,2007,2008,2009,2010

Both "Year"and "Violation Year" are string. How can I extract the multiple years in "Violation Year" seperately to make the below happen?

Year Violation Year

2010 2005
2010 2006
2010 2007
2010 2008
2010 2009
2010 2010

Thank you so much!