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:
| Date | Series | Circuit | City / State | Winner | Team |
| --- | --- | --- | --- | --- | --- |
| 30 Jan | Winfield Triple Challenge | Eastern Creek Raceway | Sydney , New South Wales | Glenn Seton | Glenn Seton Racing |
| 27 Feb | ATCC Round 1 | Amaroo Park | Sydney , New South Wales | Mark Skaife | Gibson Motor Sport |
| 6 Mar | ATCC Round 2 | Sandown International Raceway | Melbourne , Victoria | Mark Skaife | Gibson Motor Sport |
| 13 Mar | ATCC Round 3 | Symmons Plains Raceway | Launceston , Tasmania | Mark Skaife | Gibson Motor Sport |
| 19 - 20 Mar | Courier Mail Gold Coast 100 | Surfers Paradise street circuit | Surfers Paradise , Queensland | John Bowe | Dick Johnson Racing |
| 10 Apr | ATCC Round 4 | Phillip Island Grand Prix Circuit | Phillip Island , Victoria | Glenn Seton | Glenn Seton Racing |
| 17 Apr | AMC Round 1 | Eastern Creek Raceway | Sydney , New South Wales | Tony Longhurst | Logamo Racing |
| 24 Apr | ATCC Round 5 | Lakeside International Raceway | Brisbane , Queensland | Larry Perkins | Castrol Perkins Racing |
| 15 May | ATCC Round 6 | Winton Motor Raceway | Benalla , Victoria | Glenn Seton | Glenn Seton Racing |
| 22 May | AMC Round 2 | Phillip Island Grand Prix Circuit | Phillip Island , Victoria | Paul Morris | Logamo Racing |
| 5 Jun | ATCC Round 7 | Eastern Creek Raceway | Sydney , New South Wales | Peter Brock | Holden Racing Team |
| 19 Jun | AMC Round 3 | Winton Motor Raceway | Benalla , Victoria | Paul Morris | Logamo Racing |
| 26 Jun | ATCC Round 8 | Mallala Motor Sport Park | Adelaide , South Australia | Mark Skaife | Gibson Motor Sport |
| 3 Jul | ATCC Round 9 | Barbagallo Raceway | Perth , Western Australia | Alan Jones | Glenn Seton Racing |
| 17 Jul | AMC Round 4 | Lakeside International Raceway | Brisbane , Queensland | Tony Longhurst | Logamo Racing |
| 24 Jul | ATCC Round 10 | Oran Park Raceway | Sydney , New South Wales | Glenn Seton | Glenn Seton Racing |
| 7 Aug | AMC Round 5 | Mallala Motor Sport Park | Adelaide , South Australia | Tony Longhurst | Logamo Racing |
| 28 Aug | AMC Round 6 | Oran Park Raceway | Sydney , New South Wales | Paul Morris | Logamo Racing |
| 4 Sep | Sandown 500 | Sandown International Raceway | Melbourne , Victoria | Dick Johnson John Bowe | Dick Johnson Racing |
| 2 Oct | Tooheys 1000 | Mount Panorama Circuit | Bathurst , New South Wales | Dick Johnson John Bowe | Dick Johnson Racing |
| 12 - 13 Nov | Sensational Adelaide Touring Cars | Adelaide Street Circuit | Adelaide , South Australia | John Bowe | Dick Johnson Racing |
Question:
What Date had a Series of ATCC Round 6?
Answer:
15 May