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:
| Team | Titles | Runner-up | Third place | Fourth place | Years participated |
| --- | --- | --- | --- | --- | --- |
| Michigan | 15 | 13 | 10 | 6 | 44 |
| Michigan State | 12 | 13 | 11 | 4 | 40 |
| Michigan Tech | 10 | 13 | 10 | 16 | 49 |
| Western Michigan | 2 | 1 | 0 | 1 | 4 |
| North Dakota | 2 | 1 | 0 | 1 | 4 |
| Toronto | 1 | 0 | 0 | 0 | 1 |
| New Hampshire | 1 | 0 | 1 | 0 | 2 |
| Colorado College | 1 | 1 | 0 | 1 | 3 |
| Wisconsin | 1 | 1 | 1 | 0 | 3 |
| Boston College | 1 | 0 | 3 | 0 | 4 |
| Notre Dame | 1 | 0 | 0 | 3 | 4 |
| Boston University | 1 | 0 | 4 | 0 | 5 |
| Harvard | 1 | 0 | 2 | 2 | 5 |
| Maine | 0 | 1 | 0 | 0 | 1 |
| Ohio State | 0 | 1 | 0 | 0 | 1 |
| Rensselaer Polytechnic Institute | 0 | 2 | 0 | 0 | 2 |
| Lake Superior State | 0 | 1 | 1 | 1 | 3 |
| Northern Michigan | 0 | 1 | 2 | 2 | 5 |
| Colgate | 0 | 0 | 1 | 0 | 1 |
| Dartmouth | 0 | 0 | 1 | 0 | 1 |
| Providence | 0 | 0 | 1 | 0 | 1 |
| Brown | 0 | 0 | 1 | 1 | 2 |
| Cornell | 0 | 0 | 0 | 1 | 1 |
| Princeton | 0 | 0 | 0 | 1 | 1 |
| St Lawrence | 0 | 0 | 0 | 1 | 1 |
| Yale | 0 | 0 | 0 | 1 | 1 |
| Bowling Green | 0 | 0 | 0 | 2 | 2 |
| Pennsylvania | 0 | 0 | 0 | 2 | 2 |
| Western Ontario | 0 | 0 | 0 | 2 | 2 |
Question:
how many times has michigan state been runner-up?
Answer:
13