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 | Álbum | Charts | Sales | Certification |
| --- | --- | --- | --- | --- |
| 1990.0 | Xuxa 1 | No. 1 Latin Charts | 2500000.0 | 1x Diamond |
| 1991.0 | Xuxa 2 | No. 1 Latin Charts | 1650000.0 | 2x Platinum |
| 1992.0 | Xuxa 3 | No. 7 Latin Charts | 750000.0 | 2x Platinum |
| 1993.0 | Todos Sús Exitos | No. 1 Latin Charts | 1500000.0 | 1x Diamond |
| 1994.0 | El Pequeño Mundo | No. 49 Latin | 300000.0 | 1x Platinum |
| 1996.0 | Xuxa Dance | No. 10 Latin Charts | 300000.0 | 1x Platinum |
| 1999.0 | El Mundo és de los Dos | No. 40 Latin Charts | 150000.0 | 1x Gold |
| 2005.0 | Solamente para Bajitos | – | 200000.0 | 1x Gold |
Question:
What were the number of sales before 1991?
Answer:
2500000.0