Table:
text: Björn Borg career statistics
Singles: 19 finals (15 titles, 4 runners-up)
Singles: 19 finals (15 titles, 4 runners-up)
Outcome Year_ Championship Surface Opponent_in_the_final Score_in_the_final
Winner 1978 Rome Clay Adriano Panatta 1–6, 6–3, 6–1, 4–6, 6–3
Winner 1979 Tokyo Carpet Jimmy Connors 6–3, 6–2
Winner 1979 Monte Carlo Clay Vitas Gerulaitis 6–2, 6–1, 6–3
Winner 1979 Toronto Hard John McEnroe 6–3, 6–3
Winner 1979 Las Vegas Hard Jimmy Connors 6–3, 6–2
Winner 1980 Monte Carlo Clay Guillermo Vilas 6–1, 6–0, 6–2
Runner-up 1980 Toronto Hard Ivan Lendl 4–6, 5–4, ret.
Winner 1980 Stockholm Hard John McEnroe 6–3, 6–4

text: Björn Borg career statistics
Singles: 19 finals (15 titles, 4 runners-up)
Singles: 19 finals (15 titles, 4 runners-up)
Outcome Year_ Championship Surface Opponent_in_the_final Score_in_the_final
Runner-up 1973 Monte-Carlo Clay Ilie Năstase 4–6, 1–6, 2–6
Runner-up 1973 Stockholm Hard Tom Gorman 3–6, 6–4, 6–7
Winner 1974 Rome Clay Ilie Năstase 6–3, 6–4, 6–2
Winner 1974 Boston Clay Tom Okker 7–6, 6–1, 6–1
Winner 1975 Boston Clay Guillermo Vilas 6–3, 6–4, 6–2
Winner 1976 Boston Clay Harold Solomon 6–7, 6–4, 6–1, 6–2
Runner-up 1976 Philadelphia Carpet Jimmy Connors 6–7, 4–6, 0–6
Winner 1977 Monte Carlo Clay Corrado Barazzutti 6–3, 7–5, 6–0
Winner 1977 London Carpet John Lloyd 6–4, 6–4, 6–3
Winner 1978 Tokyo Carpet Brian Teacher 6–3, 6–4

Question: In Bjorn Borg's career statistics, name the number of years for 6–3, 6–2 hard surface among singles: 19 finals (15 titles, 4 runners-up). ?