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 | Tournament | Winning score | Margin of victory | Runner(s)-up |
| --- | --- | --- | --- | --- |
| 11 Jun 1977 | Martini International | –15 (70-71-70-66=277) | 3 strokes | Simon Hobday |
| 28 May 1979 | Martini International | E (75-67-72-74=288) | 1 stroke | Antonio Garrido , John Morgan |
| 11 May 1980 | Paco Rabanne Open de France | –20 (67-66-68-67=268) | 10 strokes | Ian Mosey |
| 6 Jul 1980 | Scandinavian Enterprise Open | –12 (76-66-70-64=276) | 3 strokes | Mark James |
| 17 May 1981 | Martini International | –1 (71-72-72-72=287) | 1 stroke | Bernhard Langer |
| 31 May 1981 | Dunlop Masters | –15 (72-68-66-67=273) | 4 strokes | Graham Marsh |
| 13 Jun 1982 | Dunlop Masters | –17 (68-69-65-65=267) | 8 strokes | Bernhard Langer |
| 10 Jul 1982 | State Express English Classic | –13 (70-70-70-69=279) | 1 stroke | Brian Marchbank |
| 22 Aug 1982 | Benson & Hedges International Open | –5 (69-74-69-71=283) | 1 stroke | Bob Charles , Graham Marsh , Ian Woosnam |
| 20 Jul 1986 | The Open Championship | E (74-63-74-69=280) | 5 strokes | Gordon J Brand |
| 14 Sep 1986 | Panasonic European Open | –11 (67-67-69-66=269) | 1 stroke | Ken Brown |
| 22 May 1988 | Lancia Italian Open | –18 (69-68-63-70=270) | 1 stroke | Craig Parry |
| 18 Jul 1993 | The Open Championship | –13 (66-68-69-64=267) | 2 strokes | Nick Faldo |
| 6 Feb 1994 | Johnnie Walker Classic | –11 (75-70-64-68=277) | 1 stroke | Fred Couples |
Question:
On which date did Ian Mosey finish runner-up?
Answer:
11 May 1980