Table:
text: 1986 Senior PGA Tour
Tournament results
Tournament results
Date_ Tournament Location_ Purse_ Winner Score _1st_Prize_
Jan 11 MONY Senior Tournament of Champions California 100000 Miller Barber (18) 282 (-6) 30000
Feb 9 Treasure Coast Classic Florida 225000 Charles Owens (1) 202 (-14) 33750
Feb 16 General Foods PGA Seniors` Championship Florida 250000 Gary Player (2) 281 (-7) 45000
Mar 16 Del E. Webb Senior PGA Tour Roundup Arizona 200000 Charles Owens (2) 202 (-14) 30000
Mar 23 The Vintage Invitational California 300000 Dale Douglass (1) 272 (-16) 40500
Mar 30 Johnny Mathis Seniors Classic California 250000 Dale Douglass (2) 202 (-14) 37500

Question: In the 1986 Senior PGA Tour tournament results, how many purses were there for March 16?