Table:
text: Betty Stöve
Women's doubles: 14 (6 titles, 8 runner-ups)
Women's doubles: 14 (6 titles, 8 runner-ups)
Outcome Year_ Championship Surface Partner Opponents_in_the_final Score_in_the_final
Winner 1972 French Open Clay Billie Jean King Winnie Shaw Nell Truman 6–1, 6–2
Winner 1972 Wimbledon Grass Billie Jean King Françoise Dürr Judy Tegart Dalton 6–2, 4–6, 6–3
Winner 1972 US Open Grass Françoise Dürr Margaret Court Virginia Wade 6–3, 1–6, 6–3
Runner-up 1973 French Open Clay Françoise Dürr Margaret Court Virginia Wade 6–2, 6–3
Runner-up 1973 Wimbledon Grass Françoise Dürr Rosie Casals Billie Jean King 6–1, 4–6, 7–5
Runner-up 1974 US Open Grass Françoise Dürr Rosie Casals Billie Jean King 7–6, 6–7, 6–4
Runner-up 1975 Wimbledon Grass Françoise Dürr Ann Kiyomura Kazuko Sawamatsu 7–5, 1–6, 7–5

text: Betty Stöve
Women's doubles: 14 (6 titles, 8 runner-ups)
Women's doubles: 14 (6 titles, 8 runner-ups)
Outcome Year_ Championship Surface Partner Opponents_in_the_final Score_in_the_final
Runner-up 1976 Wimbledon Grass Billie Jean King Chris Evert Martina Navratilova 6–1, 3–6, 7–5
Runner-up 1977 Wimbledon Grass Martina Navratilova Helen Gourlay JoAnne Russell 6–3, 6–3
Winner 1977 US Open (2) Clay Martina Navratilova Renée Richards Betty-Ann Stuart 6–1, 7–6
Winner 1979 French Open (2) Clay Wendy Turnbull Françoise Dürr Virginia Wade 3–6, 7–5, 6–4
Runner-up 1979 Wimbledon Grass Wendy Turnbull Billie Jean King Martina Navratilova 5–7, 6–3, 6–2
Winner 1979 US Open (3) Hard Wendy Turnbull Billie Jean King Martina Navratilova 6–4, 6–3

Question: What is the last year of women's doubles 14 6 titles 8 runners-up shown by Betty Stove?