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 |
| --- | --- | --- | --- | --- |
| Sep 30, 1962 | Sahara Invitational | –14 (69-67-66-68=270) | 3 strokes | Don January |
| Oct 28, 1962 | Orange County Open Invitational | –17 (68-66-64-69=267) | Playoff | Bob Rosburg |
| Nov 18, 1962 | Mobile Sertoma Open Invitational | –15 (67-68-68-70=273) | 7 strokes | Doug Sanders |
| May 27, 1963 | Memphis Open Invitational | –10 (67-67-68-68=270) | Playoff | Tommy Aaron |
| Jan 19, 1964 | Bing Crosby National Pro-Am | –4 (70-68-70-76=284) | 3 strokes | Gay Brewer , Bo Wininger |
| Jun 7, 1964 | Thunderbird Classic | –12 (68-67-70-71=276) | 1 stroke | Mike Souchak |
| Jun 14, 1964 | Buick Open Invitational | –11 (69-66-72-70=277) | 1 stroke | Dow Finsterwald |
| Jun 28, 1964 | Cleveland Open | –14 (65-70-70-65=270) | Playoff | Arnold Palmer |
| Jul 10, 1964 | The Open Championship | –9 (73-68-68-70=279) | 5 strokes | Jack Nicklaus |
| Jun 6, 1965 | Buick Open Invitational | –8 (71-70-69-70=280) | 2 strokes | Johnny Pott |
| Aug 23, 1965 | Carling World Open | –5 (71-71-67-70=279) | 2 strokes | Arnold Palmer |
| May 29, 1966 | Oklahoma City Open Invitational | –17 (69-68-69-65=271) | 6 strokes | Tom Weiskopf |
Question:
By how many strokes did Lema beat Jack Nicklaus?
Answer:
5 strokes