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:
| Name | Street address | Years as tallest | Height ft (m) | Floors |
| --- | --- | --- | --- | --- |
| Old State House | 206 Washington Street | 1713–1745 | 08.0 65 (20) | 3.0 |
| Old North Church | 193 Salem Street | 1745–1810 | 08.0 175 (53) | 1.0 |
| Park Street Church | 1 Park Street | 1810–1867 | 07.0 217 (66) | 1.0 |
| Church of the Covenant | 67 Newbury Street | 1867–1915 | 06.0 236 (72) | 1.0 |
| Custom House Tower | 3 McKinley Square | 1915–1964 | 05.0 496 (151) | 32.0 |
| Prudential Tower | 800 Boylston Street | 1964–1976 | 04.0 749 (228) | 52.0 |
| Hancock Place | 200 Clarendon Street | 1976–present | 03.0 790 (241) | 60.0 |
Question:
How many floors does the Custom House Tower have?
Answer:
1.0