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 | Area | Height | Floors | Year |
| --- | --- | --- | --- | --- |
| Ratan Planet | Opp. ALIMCO, Naramau, G.T Road, Kalianpur | 90 metres (295 ft) | 16 | 2013 |
| The Landmark Hotel | Near Navin Market, Mall Road, Downtown | 80 metres (262 ft) | 14 | 2000 |
| Ratan Orbit | Mukherjee Vihar, Kalianpur | 70 metres (230 ft) | 14 | 2011 |
| BSNL Tower | Opp. Resrve Bank of India, Mall Road, Downtown | 65 metres (213 ft) | 15 | 2001 |
| Som Business Square (EL Mart) | Mega Mall Crossing, The Mall, Downtown | 80 metres (262 ft) | 15 | 2005 |
| Akashganga Heights | City Bypass, Chakeri | 60 metres (197 ft) | 15 | 1995 |
| Krishna Tower | Opp. Green Park Stadium, Parwati Bagla Road, Civil Lines | 48 metres (157 ft) | 10 | 2003 |
Question:
how many floors does the bsnl tower have?
Answer:
15