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:
| Date | Visitor | Score | Home | Decision | Attendance | Record |
| --- | --- | --- | --- | --- | --- | --- |
| December 1 | Calgary | 2 – 4 | Detroit | Joseph | 20066.0 | 13–7–3–1 |
| December 3 | Anaheim | 1 – 2 | Detroit | Joseph | 18504.0 | 14–7–3–1 |
| December 5 | Detroit | 5 – 3 | Phoenix | Joseph | 15189.0 | 15–7–3–1 |
| December 6 | Detroit | 3 – 3 | Dallas | Joseph | 18532.0 | 15–7–4–1 |
| December 8 | St. Louis | 3 – 4 | Detroit | Joseph | 20058.0 | 16–7–4–1 |
| December 12 | Minnesota | 3 – 2 | Detroit | Joseph | 20058.0 | 16–8–4–1 |
| December 14 | Columbus | 4 – 6 | Detroit | Joseph | 20058.0 | 17–8–4–1 |
| December 17 | Detroit | 2 – 2 | NY Islanders | Legace | 14884.0 | 17–8–5–1 |
| December 19 | Dallas | 1 – 1 | Detroit | Legace | 20058.0 | 17–8–6–1 |
| December 21 | NY Rangers | 2 – 3 | Detroit | Legace | 20058.0 | 18–8–6–1 |
| December 23 | Detroit | 1 – 0 | Columbus | Joseph | 18136.0 | 19–8–6–1 |
| December 26 | Columbus | 2 – 4 | Detroit | Joseph | 20058.0 | 20–8–6–1 |
| December 28 | Detroit | 4 – 2 | Nashville | Legace | 17113.0 | 21–8–6–1 |
| December 29 | Detroit | 2 – 2 | Dallas | Joseph | 18532.0 | 21–8–7–1 |
| December 31 | St. Louis | 1 – 5 | Detroit | Joseph | 20058.0 | 22–8–7–1 |
Question:
Visitor of minnesota has what average attendance?
Answer:
20058.0