Question: In what year was Samuel David Koch drafted by the professional American football team based in Baltimore,  Maryland? 

Context paragraphs:
Maryland Terrapins football: The Maryland Terrapins football team represents the University of Maryland, College Park in the sport of American football.  The Terrapins compete in the Football Bowl Subdivision (FBS) of the National Collegiate Athletic Association (NCAA) and the Big Ten Conference.  The Terrapins joined the Big Ten Conference on July 1, 2014, following 62 years in the Atlantic Coast Conference as a founding member.  The Terrapins are currently coached by D. J. Durkin.  Since 1950, the Terrapins have played their home games at Maryland Stadium in College Park, Maryland with occasional home games from time to time in Baltimore, Maryland, making them one of two FBS football teams in the Baltimore–Washington metropolitan area (Navy Midshipmen) and the closest Football Bowl Subdivision team to Washington, D.C. The team's official colors of red, white, black, and gold have been in use in some combination since the 1920s and are taken from Maryland's state flag, and the Terrapins nickname — often abbreviated as "Terps" — was adopted in 1933 after a turtle species native to the state.  Maryland shares storied rivalries with Virginia and West Virginia.

Baltimore Ravens: The Baltimore Ravens are a professional American football team based in Baltimore, Maryland.  The Ravens compete in the National Football League.  The team plays its home games at M&T Bank Stadium and is headquartered in Owings Mills.

Baltimore Colts (1947–50): The Baltimore Colts were a professional American football team based in Baltimore, Maryland.  The first team to bear the name Baltimore Colts, they were members of the All-America Football Conference (AAFC) from 1947 to 1949 and then joined the National Football League (NFL) for one season before folding.  They were one of the least successful teams in the AAFC and NFL both on and off the field, winning only 11 games in their history.  In 1953, Baltimore was granted an expansion team that revived the Colts name; this team is now the Indianapolis Colts.

History of the Baltimore Colts: The professional American football franchise currently known as the Indianapolis Colts was originally based in Baltimore, Maryland, from 1953 to 1984.  This article chronicles the franchise's history during its time as the Baltimore Colts.  Named in honor of Baltimore's history of horse breeding and racing (including the Preakness Stakes, one of the events in the U.S. Triple Crown championship series) at Pimlico Race Course, this was the second incarnation of the "Baltimore Colts" after the first one played from 1947 to 1950 in the old All America Football Conference for three years and moved to the National Football League (NFL) with a few other AAFC teams after the 1949 merger, but playing only one season.  The 1953-83 Baltimore Colts team played its home games at Memorial Stadium on 33rd Street during its entire tenure in Baltimore before the franchise relocated to Indianapolis, Indiana, in March 1984.

History of the Indianapolis Colts: The Indianapolis Colts are a professional American football team based in Indianapolis, Indiana.  They play in the South Division of the American Football Conference (AFC) in the National Football League (NFL).  The organization began play in 1953 as the Baltimore Colts with the team located in Baltimore, Maryland; it relocated to Indianapolis following the 1983 season.

List of Cleveland Browns head coaches: The Cleveland Browns are a professional American football franchise based in Cleveland, Ohio.  They are a member of the North Division of the American Football Conference (AFC) in the National Football League (NFL).  The team began playing in 1946 as a charter member of the All-America Football Conference (AAFC), and joined the NFL as part of the AAFC–NFL merger in 1950.  The team played their home games at Cleveland Stadium from 1946 to 1995 before moving to FirstEnergy Stadium, where they have played since 1999.  The Browns did not play from 1996 to 1998 when the team's owner, Art Modell, moved the team to Baltimore, Maryland and formed the Baltimore Ravens.  The team was re-activated under new ownership in Cleveland in 1999.  The team is currently owned by Jimmy Haslam III, and Joe Banner is their Chief Executive Officer.  Tom Heckert was their general manager until the end of the 2012 season, when he was fired along with the team's incumbent head coach Pat Shurmur.

List of New Orleans Saints head coaches: The New Orleans Saints are a professional American football team based in New Orleans, Louisiana.  They are a member of the South Division of the National Football Conference (NFC) in the National Football League (NFL).  The NFL awarded the city of New Orleans the 16th franchise in the league in November 1, 1966, All Saints Day, five months after the 89th United States Congress approved the merger of the NFL with the American Football League (AFL) in June of that year.  In January 1967, the team was given the current "New Orleans Saints" name, and began playing in their first season in September of that year.  Since the franchise's creation, it has been based in New Orleans.  The team's home games were originally played at Tulane Stadium from 1967 to 1974, it was demolished in 1979, when the team relocated its home games to its current stadium, the Mercedes-Benz Superdome (formerly Louisiana Superdome from 1975 to 2011).

List of Baltimore Ravens seasons: This is a list of seasons completed by the Baltimore Ravens, a professional American football franchise based in Baltimore, Maryland.  The Ravens are a member club of the American Football Conference (AFC) North division in the National Football League (NFL).  The team began play in the 1996 season as a result of former Cleveland Browns team owner Art Modell's decision to move the Browns to Baltimore.

List of Indianapolis Colts head coaches: The Indianapolis Colts are a professional American football team based in Indianapolis, Indiana.  They are a member of the South Division of the American Football Conference (AFC) in the National Football League (NFL).  In 1953, a Baltimore-based group led by Carroll Rosenbloom won the rights to a new Baltimore franchise.  Rosenbloom was granted an NFL team, and was awarded the holdings of the defunct Dallas Texans organization.  The team was known as the Baltimore Colts for 31 seasons before moving to Indianapolis in March 1984.

Sam Koch: Samuel David Koch ( , like "cook"; born August 13, 1982) is an American football punter for the Baltimore Ravens of the National Football League (NFL).  He was drafted by the Ravens in the sixth round of the 2006 NFL Draft.  He played college football at Nebraska.  He is known for developing many punting variations.

Supporting paragraphs: Sam Koch Baltimore Ravens
Answer: 2006