Table:
text: Women's Western Open
Stroke play era
Stroke play era
Year_ Winner Score Runners_up Winner_s_share_ Course Location_
1967 Kathy Whitworth 289 (–11) Sandra Haynie 1500 Pekin CC Pekin, Illinois
1966 Mickey Wright 302 (+2) Margie Masters , Jo Ann Prentice 1500 Rainbow Springs CC Mukwonago, Wisconsin
1965 Susie Maxwell 290 (–2) Marlene Hagge 1500 Beverly CC Chicago, Illinois
1964 Carol Mann 308 (+8) Ruth Jessen , Judy Kimball-Simon 1200 Scenic Hills CC Pensacola, Florida
1963 Mickey Wright 292 (E) Kathy Whitworth 1200 Maple Bluff CC Madison, Wisconsin
1962 Mickey Wright 295 (+7) PO Mary Lena Faulk 1200 Montgomery CC Montgomery, Alabama
1961 Mary Lena Faulk 290 (–10) Betsy Rawls 1313 Belle Meade CC Nashville, Tennessee

text: Women's Western Open
Stroke play era
Stroke play era
Year_ Winner Score Runners_up Winner_s_share_ Course Location_
1960 Joyce Ziske 301 (+9) PO Barbara Romack 1313 Beverly CC Chicago, Illinois
1959 Betsy Rawls 293 (+5) JoAnne Gunderson (a), Patty Berg 1313 Ranier G&CC Seattle, Washington
1958 Patty Berg 293 (+1) Beverly Hanson 950 Kahkwa CC Erie, Pennsylvania
1957 Patty Berg 291 (–1) Wiffi Smith 1000 Montgomery CC Montgomery, Alabama
1956 Beverly Hanson 304 (E) Louise Suggs 1000 Wakonda CC Des Moines, Iowa
1955 Patty Berg 292 (E) Fay Crocker , Louise Suggs 1000 Maple Bluff CC Madison, Wisconsin

Question: What was the percentage of winners at the Western Open in the women's stroke play era in Madison, Wisconsin before 1963?