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 | Name | Floors* | Year* (est.) | Status |
| --- | --- | --- | --- | --- |
| 1.0 | Museum Plaza | 62.0 | n/a | cancelled; plans abandoned |
| 2.0 | Capital Plaza | 25.0 | 2012 | proposed |
| 3.0 | Jefferson Development | 18.0 | 2010 | proposed |
| 4.0 | Willow Grande | 17.0 | 2011 | proposed |
| 5.0 | RiverPark Place Tower 2 | 16.0 | 2008 | proposed |
| 6.0 | RiverPark Place Tower 1 | 16.0 | 2008 | proposed |
| 7.0 | Central City District Residential Tower | 15.0 | 2010 | proposed |
| 8.0 | ZirMed Gateway Towers | 12.0 | 2009 | completed |
Question:
What is the lowest rank of the building with 12 floors?
Answer:
8.0