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 | Date | Driver | Manufacturer | Laps | Miles (km) | Race Time | Average Speed (mph) |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1988.0 | July 2 | Rob Moroso | Oldsmobile | 200.0 | 107.6 (173.165) | 1:36:04 | 66.971 |
| 1989.0 | July 4 | Jimmy Spencer | Buick | 200.0 | 107.6 (173.165) | 1:25:01 | 75.938 |
| 1990.0 | June 30 | Mark Martin | Ford | 200.0 | 107.6 (173.165) | 1:24:52 | 76.072 |
| 1991.0 | June 22 | Chuck Bown | Pontiac | 250.0 | 134.5 (216.456) | 1:49:15 | 73.867 |
| 1992.0 | June 20 | Jimmy Spencer | Oldsmobile | 250.0 | 134.5 (216.456) | 2:21:14 | 57.139 |
| 1993.0 | June 12 | Jeff Burton | Ford | 250.0 | 134.5 (216.456) | 1:56:59 | 68.984 |
| 1994.0 | June 11 | Elton Sawyer | Ford | 250.0 | 134.5 (216.456) | 2:01:18 | 66.529 |
| 1995.0 | June 10 | Larry Pearson | Chevrolet | 250.0 | 134.5 (216.456) | 1:41:23 | 79.599 |
| 1996.0 | June 22 | David Green | Chevrolet | 250.0 | 134.5 (216.456) | 1:53:35 | 71.049 |
| 1997.0 | July 12 | Elliott Sadler | Chevrolet | 250.0 | 134.5 (216.456) | 1:39:07 | 81.419 |
| 1998.0 | July 11 | Randy LaJoie | Chevrolet | 250.0 | 134.5 (216.456) | 1:36:56 | 80.754 |
| 1999.0 | July 17 | Jeff Green | Chevrolet | 250.0 | 134.5 (216.456) | 1:35:52 | 84.179 |
Question:
Name the number of year for june 30
Answer:
1.0