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:
| Tournament | 1978 | 1979 | 1980 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | Career SR |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Grand Slams | Grand Slams | Grand Slams | Grand Slams | Grand Slams | Grand Slams | Grand Slams | Grand Slams | Grand Slams | Grand Slams | Grand Slams | Grand Slams | Grand Slams | Grand Slams | Grand Slams | Grand Slams |
| Australian Open | A | A | 1R | 3R | SF | 2R | 4R | NH | A | A | A | 1R | A | A | 0 / 6 |
| French Open | A | A | A | 1R | 1R | 1R | A | A | A | 2R | 2R | A | A | A | 0 / 5 |
| Wimbledon | A | A | A | SF | QF | 4R | 4R | QF | 3R | QF | QF | 1R | 4R | A | 0 / 11 |
| U.S. Open | A | 1R | 1R | 2R | 1R | 4R | 4R | 1R | 2R | 3R | QF | 1R | 1R | A | 0 / 13 |
| Grand Slam SR | 0 / 0 | 0 / 1 | 0 / 2 | 0 / 4 | 0 / 4 | 0 / 4 | 0 / 3 | 0 / 2 | 0 / 2 | 0 / 3 | 0 / 3 | 0 / 3 | 0 / 2 | 0 / 0 | 0 / 35 |
| Year End Ranking | 436 | 420 | 171 | 30 | 16 | 44 | 12 | 15 | 9 | 10 | 13 | 37 | 115 | 1097 | N/A |
Question:
What is 1986, when 1978 is "A", when 1979 is "A", and when 1980 is "1R"?
Answer:
NH