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:
| Team | Head Coach | President | Home Ground | Location | Founded | Website |
| --- | --- | --- | --- | --- | --- | --- |
| Burleigh Heads Bulldogs Soccer Club | Colin Phelan | Steve Kazmer | Pizzey Park, Miami | Miami | 1983.0 | http://www.burleighbulldogs.org/ |
| Merrimac FC | Brett Budwee | Tony Di Pietro | Tony Cecco Field, Clear Island Waters | Clear Island Waters | 1978.0 | http://www.merrimacfootballclub.com.au''' |
| Gold Coast Knights | Steve Radoslavic | Mario Volarevic | Croatian Sports Centre, Carrara | Carrara | 1978.0 | http://www.gcknights.com.au/ |
| Broadbeach United | Lee Vernon | Michael Doyle | Chelsea Ave, Broadbeach | Broadbeach | 1962.0 | http://www.broadbeachunited.com.au''' |
| Palm Beach Sharks Soccer Club | Mark Wakeling | Peter Williamson | 19th Avenue Stadium, Palm Beach | Palm Beach | 1966.0 | http://palmbeachfc.com.au/ |
| Mudgeeraba Soccer Club | Steve Beever | Bryan Williams | Sidd Bigg Park, Mudgeeraba | Mudgeeraba | 1980.0 | http://www.mudgeerabasoccer.com/ |
Question:
The president, peter williamson, had how many home grounds?
Answer:
1.0