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 | Area | State/\nProvince | CSA/CMA\n2009 population | Projected\n2025 population | Projected increase\n2009–2025 |
| --- | --- | --- | --- | --- | --- |
| 1 | Chicago | IL-IN-WI | 9,804,845 | 10,935,100 | 1,130,255 |
| 2 | Toronto | ON | 5,741,400 | 7,408,000 | 1,666,600 |
| 3 | Detroit | MI | 5,327,764 | 6,191,000 | 863,236 |
| 4 | Cleveland | OH | 2,891,988 | 3,172,000 | 280,012 |
| 5 | Milwaukee | WI | 1,760,268 | 1,913,000 | 157,732 |
| 6 | Ottawa – Gatineau | ON-QC | 1,451,415 | 1,596,556 | 145,141 |
| 7 | Grand Rapids | MI | 1,327,366 | 1,530,000 | 202,634 |
| 8 | Buffalo | NY | 1,203,493 | 1,040,400 | -163,093 |
| 9 | Rochester | NY | 1,149,653 | 1,248,600 | 98,947 |
| 10 | Hamilton | ON | 740,200 | 954,858 | 214,658 |
| 11 | Toledo | OH | 672,220 | 672,220 | 0 |
| 12 | Lansing | MI | 523,609 | 547,325 | 23,716 |
| 13 | Kitchener – Cambridge – Waterloo | ON | 492,400 | 635,196 | 142,796 |
| 14 | London | ON | 492,200 | 634,938 | 142,738 |
| 15 | Fort Wayne | IN | 414,315 | 455,623 | 39,366 |
| 16 | St. Catharines – Niagara | ON | 404,400 | 521,676 | 117,276 |
| 17 | Windsor | ON | 330,900 | 426,861 | 95,961 |
| 18 | Erie | PA | 280,985 | N/A | N/A |
Question:
number of great lakes population centers that are wholly or partially located in canada
Answer:
7