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:
| Season | Pitcher | Decision | Final\nscore | Opponent | Location |
| --- | --- | --- | --- | --- | --- |
| 1962 | Bobby Shantz | W | 11–2 | Chicago Cubs | Colt Stadium |
| 1963 | Turk Farrell | L | 2–9 | San Francisco Giants | Colt Stadium |
| 1964 | Ken Johnson | W | 6–3 | Cincinnati Reds | Crosley Field |
| 1965 | Bob Bruce | L | 0–2 | Philadelphia Phillies | Astrodome |
| 1966 | Robin Roberts | L | 2–3 | Los Angeles Dodgers | Dodger Stadium |
| 1967 | Mike Cuellar | W | 6–1 | Atlanta Braves | Astrodome |
| 1968 | Larry Dierker | W | 5–4 | Pittsburgh Pirates | Astrodome |
| 1969 | Don Wilson | L | 1–2 | San Diego Padres | San Diego Stadium |
| 1970 | Larry Dierker (2) | W | 8–5 | San Francisco Giants | Candlestick Park |
| 1971 | Larry Dierker (3) | W | 5–2 | Los Angeles Dodgers | Astrodome |
| 1972 | Don Wilson (2) | L | 0–5 | San Francisco Giants | Astrodome |
| 1973 | Dave Roberts | ND (W) | 2–1 | Atlanta Braves | Atlanta-Fulton County Stadium |
| 1974 | Dave Roberts (2) | L | 1–5 | San Francisco Giants | Candlestick Park |
| 1975 | Larry Dierker (4) | W | 6–2 | Atlanta Braves | Astrodome |
| 1976 | J.R. Richard | L | 5–11 | Cincinnati Reds | Riverfront Stadium |
| 1977 | J.R. Richard (2) | ND (W) | 3–2 | Atlanta Braves | Astrodome |
| 1978 | J.R. Richard (3) | L | 9–11 | Cincinnati Reds | Riverfront Stadium |
| 1979 | J.R. Richard (4) | W | 2–1 | Atlanta Braves | Astrodome |
| 1980* | J.R. Richard (5) | W | 3–2 | Los Angeles Dodgers | Astrodome |
| 1981* | Joe Niekro | L | 0–2 | Los Angeles Dodgers | Dodger Stadium |
| 1982 | Nolan Ryan | L | 3–14 | St. Louis Cardinals | Astrodome |
| 1983 | Joe Niekro (2) | ND (L) | 7–16 | Los Angeles Dodgers | Astrodome |
| 1984 | Joe Niekro (3) | L | 2–4 | Montreal Expos | Astrodome |
| 1985 | Nolan Ryan (2) | W | 2–1 | Los Angeles Dodgers | Astrodome |
| 1986* | Nolan Ryan (3) | L | 3–8 | San Francisco Giants | Astrodome |
| 1987 | Mike Scott | W | 4–3 | Los Angeles Dodgers | Astrodome |
| 1988 | Mike Scott (2) | W | 6–3 | San Diego Padres | Astrodome |
| 1989 | Mike Scott (3) | W | 10–3 | Atlanta Braves | Astrodome |
| 1990 | Mike Scott (4) | ND (L) | 4–8 | Cincinnati Reds | Astrodome |
| 1991 | Mike Scott (5) | L | 2–6 | Cincinnati Reds | Riverfront Stadium |
| 1992 | Pete Harnisch | L | 0–2 | Atlanta Braves | Astrodome |
| 1993 | Doug Drabek | L | 1–3 | Philadelphia Phillies | Astrodome |
| 1994 | Pete Harnisch (2) | ND (W) | 6–5 | Montreal Expos | Astrodome |
| 1995 | Doug Drabek (2) | W | 10–2 | San Diego Padres | Jack Murphy Stadium |
| 1996 | Shane Reynolds | L | 3–4 | Los Angeles Dodgers | Astrodome |
| 1997* | Shane Reynolds (2) | W | 2–1 | Atlanta Braves | Astrodome |
| 1998* | Shane Reynolds (3) | ND (L) | 4–9 | San Francisco Giants | Astrodome |
| 1999* | Shane Reynolds (4) | W | 4–2 | Chicago Cubs | Astrodome |
| 2000 | Shane Reynolds (5) | W | 5–2 | Pittsburgh Pirates | Three Rivers Stadium |
| 2001* | Scott Elarton | W | 11–3 | Milwaukee Brewers | Enron Field |
| 2002 | Wade Miller | L | 3–9 | Milwaukee Brewers | Astros Field |
| 2003 | Roy Oswalt | W | 10–4 | Colorado Rockies | Minute Maid Park |
| 2004* | Roy Oswalt (2) | ND (L) | 4–5 | San Francisco Giants | Minute Maid Park |
| 2005** | Roy Oswalt (3) | L | 3–7 | St. Louis Cardinals | Minute Maid Park |
| 2006 | Roy Oswalt (4) | W | 1–0 | Florida Marlins | Minute Maid Park |
| 2007 | Roy Oswalt (5) | ND (L) | 2–4 | Pittsburgh Pirates | Minute Maid Park |
| 2008 | Roy Oswalt (6) | L | 0–4 | San Diego Padres | Petco Park |
| 2009 | Roy Oswalt (7) | L | 2–4 | Chicago Cubs | Minute Maid Park |
| 2010 | Roy Oswalt (8) | L | 2–5 | San Francisco Giants | Minute Maid Park |
| 2011 | Brett Myers | ND (L) | 4–5 | Philadelphia Phillies | Citizens Bank Park |
| 2012 | Wandy Rodriguez | ND (L) | 4–5 | Colorado Rockies | Minute Maid Park |
| 2013 | Bud Norris | W | 8–2 | Texas Rangers | Minute Maid Park |
Question:
the astros have lost their season opener to the giants how many times since defeating them in the 1970 season opener?
Answer:
6