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:
| Tie | Home Team | Score | Away Team | Attendance |
| --- | --- | --- | --- | --- |
| 1 | Aylesbury United | 2-2 | Windsor & Eton | 847 |
| 2 | Burscough | 5-0 | Wakefield & Emley | 437 |
| 3 | Dover Athletic | 0-3 | Forest Green Roves | 932 |
| 4 | Farnborough Town | 2-0 | Halifax Town | 863 |
| 5 | Gloucester City | 1-1 | Southport | 1,237 |
| 6 | Havant & Waterlooville | 3-0 | Hayes | 456 |
| 7 | Margate | 0-2 | Tamworth | 971 |
| 8 | Yeovil Town | 2-1 | Northwich Victoria | 4,469 |
Question:
at most, how many of these teams have never scored a goal?
Answer:
5