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:
| Rank | Map Reference Number | Census Statistical Area | 2007 Population | Lake(s) |
| --- | --- | --- | --- | --- |
| 1.0 | 16.0 | Chicago-Naperville-Michigan City, IL-IN-WI CSA | 9745165.0 | Lake Michigan |
| 2.0 | 15.0 | Detroit-Warren-Flint, MI CSA | 5405918.0 | Lake Erie and Lake Huron |
| 3.0 | 21.0 | Cleveland-Akron-Elyria, OH CSA | 2896968.0 | Lake Erie |
| 4.0 | 13.0 | Milwaukee-Racine-Waukesha, WI CSA | 1739497.0 | Lake Michigan |
| 5.0 | 14.0 | Grand Rapids-Muskegon-Holland, MI CSA | 1323095.0 | Lake Michigan |
| 6.0 | 24.0 | Buffalo-Niagara-Cattaraugus, NY CSA | 1208270.0 | Lake Erie and Lake Ontario |
| 7.0 | 25.0 | Rochester-Batavia-Seneca Falls, NY CSA | 1122845.0 | Lake Ontario |
| 8.0 | 26.0 | Syracuse-Auburn, NY CSA | 725359.0 | Lake Ontario |
| 9.0 | 19.0 | Toledo-Fremont, OH CSA | 711952.0 | Lake Erie |
| 10.0 | 17.0 | Kalamazoo-Portage, MI MSA | 323264.0 | Lake Michigan |
| 11.0 | 12.0 | Saginaw-Bay City-Saginaw Township North, MI CSA | 309785.0 | Lake Huron |
| 12.0 | 9.0 | Green Bay, WI MSA | 301131.0 | Lake Michigan |
| 13.0 | 22.0 | Erie, PA MSA | 279092.0 | Lake Erie |
| 14.0 | 1.0 | Duluth, MN-WI MSA | 274308.0 | Lake Superior |
| 15.0 | 18.0 | Niles-Benton Harbor, MI MSA | 159589.0 | Lake Michigan |
| 16.0 | 7.0 | Traverse City, MI μSA | 142075.0 | Lake Michigan |
| 17.0 | 23.0 | Jamestown-Dunkirk-Fredonia, NY μSA | 133945.0 | Lake Erie |
| 18.0 | 27.0 | Watertown-Fort Drum, NY μSA | 117201.0 | Lake Ontario |
| 19.0 | 11.0 | Sheboygan, WI MSA | 114504.0 | Lake Michigan |
| 20.0 | 10.0 | Manitowoc, WI μSA | 80928.0 | Lake Michigan |
| 21.0 | 20.0 | Sandusky, OH MSA | 77323.0 | Lake Erie |
| 22.0 | 6.0 | Marinette, WI-MI μSA | 66820.0 | Lake Michigan |
| 23.0 | 3.0 | Marquette, MI μSA | 65216.0 | Lake Superior |
| 24.0 | 4.0 | Sault Ste. Marie, MI μSA | 38922.0 | Lake Huron and Lake Superior |
| 25.0 | 5.0 | Escanaba, MI μSA | 37367.0 | Lake Michigan |
| 26.0 | 2.0 | Houghton, MI μSA | 37352.0 | Lake Superior |
| 27.0 | 8.0 | Alpena, MI μSA | 29707.0 | Lake Huron |
Question:
What is the lowest rank with a smaller population in 2007 than 117,201 and whose map reference number is 22?
Answer:
13.0