Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | Division | League | Regular Season | Playoffs | Open Cup |
| --- | --- | --- | --- | --- | --- |
| 2005.0 | 3.0 | USL Second Division | 5th | Did not qualify | 1st Round |
| 2006.0 | 3.0 | USL Second Division | 4th | Semifinals | 2nd Round |
| 2007.0 | 3.0 | USL Second Division | 8th | Did not qualify | 1st Round |
| 2008.0 | 4.0 | USL PDL | 4th, Great Lakes | Did not qualify | Did not qualify |
| 2009.0 | 4.0 | USL PDL | 8th, Great Lakes | Did not qualify | Did not qualify |
| 2010.0 | 4.0 | USL PDL | 6th, Great Lakes | Did not qualify | Did not qualify |
| 2011.0 | 4.0 | USL PDL | 8th, Great Lakes | Did not qualify | Did not qualify |
Question:
When 4th, great lakes is the regular season what is the league?
Answer:
USL PDL