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 | London Borough | Black African Population | Black Caribbean Population | Other Black Population | Total Black Population |
| --- | --- | --- | --- | --- | --- |
| 1.0 | Lambeth | 35187.0 | 28886.0 | 14469.0 | 78542.0 |
| 2.0 | Southwark | 47413.0 | 17974.0 | 12124.0 | 77511.0 |
| 3.0 | Lewisham | 32025.0 | 30854.0 | 12063.0 | 74942.0 |
| 4.0 | Croydon | 28981.0 | 31320.0 | 12955.0 | 73256.0 |
| 5.0 | Newham | 37811.0 | 15050.0 | 7395.0 | 60256.0 |
| 6.0 | Hackney | 27976.0 | 19168.0 | 9714.0 | 56858.0 |
| 7.0 | Brent | 24391.0 | 23723.0 | 10518.0 | 58632.0 |
| 8.0 | Enfield | 28222.0 | 17334.0 | 8131.0 | 53687.0 |
| 9.0 | Greenwich | 35164.0 | 8051.0 | 5440.0 | 48655.0 |
| 10.0 | Haringey | 23037.0 | 18087.0 | 6706.0 | 47830.0 |
| 11.0 | Waltham Forest | 18815.0 | 18841.0 | 7135.0 | 44791.0 |
| 12.0 | Barking and Dagenham | 28685.0 | 5227.0 | 3228.0 | 37140.0 |
| 13.0 | Ealing | 17299.0 | 13192.0 | 6369.0 | 36860.0 |
| 14.0 | Barnet | 19392.0 | 4468.0 | 3571.0 | 27431.0 |
| 15.0 | Islington | 12622.0 | 7943.0 | 5729.0 | 26294.0 |
| 16.0 | Redbridge | 12357.0 | 9064.0 | 3424.0 | 24845.0 |
| 17.0 | Hammersmith and Fulham | 10552.0 | 7111.0 | 3842.0 | 21505.0 |
| 18.0 | Merton | 10442.0 | 8126.0 | 2243.0 | 20811.0 |
| 19.0 | Hillingdon | 11275.0 | 4615.0 | 4192.0 | 20082.0 |
Question:
What is the rank of london borough in southwark?
Answer:
2.0