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:
| Year | Theme | Face Value | Weight | Diameter | Mintage | Issue Price |
| --- | --- | --- | --- | --- | --- | --- |
| 2006.0 | Dog sled | Thirty dollars | 31.50 g | 40mm | 15000.0 | $89.95 |
| 2006.0 | Dog sled (gold variant) | Two hundred and fifty dollars | 45 g | 40mm | 900.0 | $1089.95 |
| 2007.0 | Ruby-throated Hummingbird | Twenty-five cents | 12.61 g | 35mm | 25000.0 | $24.95 |
| 2007.0 | Red-breasted Nuthatch | Twenty-five cents | 12.61 g | 35mm | 25000.0 | $24.95 |
| 2008.0 | Downy Woodpecker | Twenty-five cents | 12.61 g | 35mm | 25000.0 | $24.95 |
Question:
What is the Diameter of the Dog Sled (gold variant) Theme coin?
Answer:
40mm