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:
| Player | Country | Year(s) won | Total | To par |
| --- | --- | --- | --- | --- |
| Seve Ballesteros | Spain | 1979 , 1984 , 1988 | 145.0 | 1.0 |
| Tom Weiskopf | United States | 1973 | 145.0 | 1.0 |
| Gary Player | South Africa | 1959 , 1968 , 1974 | 146.0 | 2.0 |
| Jack Nicklaus | United States | 1966 , 1970 , 1978 | 148.0 | 4.0 |
| Tom Watson | United States | 1975 , 1977 , 1980 , 1982 , 1983 | 148.0 | 4.0 |
Question:
What is Year(s) Won, when Total is "145", and when Country is "United States"?
Answer:
1973.0