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 | City | Years as tallest | Metres | Feet | Floors |
| --- | --- | --- | --- | --- | --- |
| Carlton Centre | Johannesburg | 1973–present | 223.0 | 732.0 | 50.0 |
| KwaDukuza eGoli Hotel Tower 1, Trust Bank Building | Johannesburg | 1970–1973 | 140.0 | 459.0 | 31.0 |
| Standard Bank Building | Johannesburg | 1968–1970 | 138.8 | 455.0 | 34.0 |
| Schlesinger Building | Johannesburg | 1965–1968 | 110.0 | 361.0 | 21.0 |
| Naspers Centre | Cape Town | 1962–1965 | 93.0 | 205.0 | 22.0 |
| Mutual Heights Building | Cape Town | 1940–1962 | 91.0 | 298.0 | 18.0 |
| Chamber of Mines Building | Johannesburg | 1936–1940 | 80.0 | 262.0 | 18.0 |
| Union Buildings | Pretoria | 1913–1936 | 60.0 | 196.0 | 10.0 |
Question:
What is listed under the Years as tallest, that has Floors of 31?
Answer:
1970–1973