id  county  year    quarter month   x-variable  y-variable

1   A   2002    1   12  0.37697465  0.37558642
2   A   2004    3   1   0.489103086 0.08930858
3   B   2005    1   3   0.157534222 0.786757078
4   B   2002    4   6   0.217419882 0.879087061
5   B   2006    2   8   0.093031483 0.239352091
6   F   2002    3   2   0.957580223 0.927710233