Table:
text: List of Masters Tournament champions
By year
Masters Tournament champions
Year_ Country Champion Total_score To_Par_a_
1994 Spain José María Olazábal Category:Articles with hCards 279 −9
1995 United States Ben Crenshaw Category:Articles with hCards 274 −14
1996 England Nick Faldo Category:Articles with hCards 276 −12
1997 United States Tiger Woods Category:Articles with hCards 270 −18
1998 United States Mark O`Meara Category:Articles with hCards 279 −9
1999 Spain José María Olazábal Category:Articles with hCards 280 −8
2000 Fiji Vijay Singh Category:Articles with hCards 278 −10
2001 United States Tiger Woods Category:Articles with hCards 272 −16
2002 United States Tiger Woods Category:Articles with hCards 276 −12
2003 Canada Mike Weir Category:Articles with hCards [n ] 281 −7
2004 United States Phil Mickelson Category:Articles with hCards 279 −9

text: List of Masters Tournament champions
By year
Masters Tournament champions
Year_ Country Champion Total_score To_Par_a_
1943 — None [b ] — —
1944 — None — —
1945 — None — —
1946 United States Herman Keiser Category:Articles with hCards 282 −6
1947 United States Jimmy Demaret Category:Articles with hCards 281 −7
1948 United States Claude Harmon Category:Articles with hCards 279 −9
1949 United States Sam Snead Category:Articles with hCards 282 −6
1950 United States Jimmy Demaret Category:Articles with hCards 283 −5
1951 United States Ben Hogan Category:Articles with hCards 280 −8
1952 United States Sam Snead Category:Articles with hCards 286 −2
1953 United States Ben Hogan Category:Articles with hCards 274 −14

text: List of Masters Tournament champions
By year
Masters Tournament champions
Year_ Country Champion Total_score To_Par_a_
1934 United States Horton Smith Category:Articles with hCards 284 −4
1935 United States Gene Sarazen Category:Articles with hCards [c ] 282 −6
1936 United States Horton Smith Category:Articles with hCards 285 −3
1937 United States Byron Nelson Category:Articles with hCards 283 −5
1938 United States Henry Picard Category:Articles with hCards 285 −3
1939 United States Ralph Guldahl Category:Articles with hCards 279 −9
1940 United States Jimmy Demaret Category:Articles with hCards 280 −8
1941 United States Craig Wood Category:Articles with hCards 280 −8
1942 United States Byron Nelson Category:Articles with hCards [d ] 280 −8

text: List of Masters Tournament champions
By year
Masters Tournament champions
Year_ Country Champion Total_score To_Par_a_
2005 United States Tiger Woods Category:Articles with hCards [o ] 276 −12
2006 United States Phil Mickelson Category:Articles with hCards 281 −7
2007 United States Zach Johnson Category:Articles with hCards 289 +1
2008 South Africa Trevor Immelman Category:Articles with hCards 280 −8
2009 Argentina Ángel Cabrera Category:Articles with hCards [p ] 276 −12
2010 United States Phil Mickelson Category:Articles with hCards 272 −16
2011 South Africa Charl Schwartzel Category:Articles with hCards 274 −14
2012 United States Bubba Watson Category:Articles with hCards [q ] 278 −10
2013 Australia Adam Scott Category:Articles with hCards [r ] 279 −9

text: List of Masters Tournament champions
By year
Masters Tournament champions
Year_ Country Champion Total_score To_Par_a_
1984 United States Ben Crenshaw Category:Articles with hCards 277 −11
1985 West Germany Bernhard Langer Category:Articles with hCards 282 −6
1986 United States Jack Nicklaus Category:Articles with hCards 279 −9
1987 United States Larry Mize Category:Articles with hCards [k ] 285 −3
1988 Scotland Sandy Lyle Category:Articles with hCards 281 −7
1989 England Nick Faldo Category:Articles with hCards [l ] 283 −5
1990 England Nick Faldo Category:Articles with hCards [m ] 278 −10
1991 Wales Ian Woosnam Category:Articles with hCards 277 −11
1992 United States Fred Couples Category:Articles with hCards 275 −13
1993 Germany Bernhard Langer Category:Articles with hCards 277 −11

text: List of Masters Tournament champions
By year
Masters Tournament champions
Year_ Country Champion Total_score To_Par_a_
1974 South Africa Gary Player Category:Articles with hCards 278 −10
1975 United States Jack Nicklaus Category:Articles with hCards 276 −12
1976 United States Raymond Floyd Category:Articles with hCards 271 −17
1977 United States Tom Watson Category:Articles with hCards 276 −12
1978 South Africa Gary Player Category:Articles with hCards 277 −11
1979 United States Fuzzy Zoeller Category:Articles with hCards [i ] 280 −8
1980 Spain Seve Ballesteros Category:Articles with hCards 275 −13
1981 United States Tom Watson Category:Articles with hCards 280 −8
1982 United States Craig Stadler Category:Articles with hCards [j ] 284 −4
1983 Spain Seve Ballesteros Category:Articles with hCards 280 −8

text: List of Masters Tournament champions
By year
Masters Tournament champions
Year_ Country Champion Total_score To_Par_a_
1964 United States Arnold Palmer Category:Articles with hCards 276 −12
1965 United States Jack Nicklaus Category:Articles with hCards 271 −17
1966 United States Jack Nicklaus Category:Articles with hCards [g ] 288 E
1967 United States Gay Brewer Category:Articles with hCards 280 −8
1968 United States Bob Goalby Category:Articles with hCards 277 −11
1969 United States George Archer Category:Articles with hCards 281 −7
1970 United States Billy Casper Category:Articles with hCards [h ] 279 −9
1971 United States Charles Coody Category:Articles with hCards 279 −9
1972 United States Jack Nicklaus Category:Articles with hCards 286 −2
1973 United States Tommy Aaron Category:Articles with hCards 283 −5

text: List of Masters Tournament champions
By year
Masters Tournament champions
Year_ Country Champion Total_score To_Par_a_
1954 United States Sam Snead Category:Articles with hCards [e ] 289 +1
1955 United States Cary Middlecoff Category:Articles with hCards 279 −9
1956 United States Jack Burke, Jr. Category:Articles with hCards 289 +1
1957 United States Doug Ford Category:Articles with hCards 283 −5
1958 United States Arnold Palmer Category:Articles with hCards 284 −4
1959 United States Art Wall, Jr. Category:Articles with hCards 284 −4
1960 United States Arnold Palmer Category:Articles with hCards 282 −6
1961 South Africa Gary Player Category:Articles with hCards 280 −8
1962 United States Arnold Palmer Category:Articles with hCards [f ] 280 −8
1963 United States Jack Nicklaus Category:Articles with hCards 286 −2

Question: What was the average year that the United States had a total score of 274 on the List of Masters Tournament Champions?