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:
| Number | Origin | Final destination | Frequency | Distance |
| --- | --- | --- | --- | --- |
| 1.0 | Bryngelstorp | Harg | Every 15 minutes | km (mi) |
| 2.0 | Arnö | Brandkärr | Every 15 minutes | km (mi) |
| 3.0 | Bus station | Brandholmen | Twice an hour | km (mi) |
| 161.0 | Bus station | Bus station | 10 times/day | NA |
| 162.0 | Bus station | Bus station | 10 times/day | NA |
Question:
What is the frequency of number 3 with a bus station origin?
Answer:
Twice an hour