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 | Record | Regular Season Finish | Playoffs | Avg Attend. |
| --- | --- | --- | --- | --- |
| 1975.0 | 16–6 | 1st, Eastern Division | NASL Champions | 10728.0 |
| 1976.0 | 18–6 | 1st, Eastern Division, Atlantic Conference | Atlantic Conference Championship | 16452.0 |
| 1977.0 | 14–12 | 3rd, Eastern Division, Atlantic Conference | Divisional Playoffs | 19491.0 |
| 1978.0 | 18–12 | 1st, Eastern Division, American Conference | Runners-up | 18123.0 |
| 1979.0 | 19–11 | 1st, Eastern Division, American Conference | Runners-up | 27650.0 |
| 1980.0 | 19–13 | 1st, Eastern Division, American Conference | American Conference Semifinals | 28345.0 |
| 1981.0 | 15–17 | 4th, Southern Division | Quarterfinals | 22299.0 |
| 1982.0 | 12–20 | 3rd, Southern Division | Did Not Qualify | 22532.0 |
| 1983.0 | 7–23 | 3rd, Southern Division | Did Not Qualify | 18507.0 |
| 1984.0 | 9–15 | 4th, Eastern Division | Did Not Qualify | 10932.0 |
Question:
Name the total number of years for quarterfinals
Answer:
1.0