the biggest-selling album of the 1970s in the uk was "bridge over troubled water" by american duo simon & garfunkel. released on 6 february 1970, it spent a total of 33 weeks at number one, and was the best-selling album of both 1970 and 1971. originally it was credited with 41 weeks at number one, but this figure includes eight weeks in february and march 1971 when no charts were published due to a postal strike which prevented collection of sales data, and the chart of 30 january 1971 was reused during this period. in 2006 the occ decided that the rival "melody maker" album chart would replace the missing weeks, with george harrison's "all things must pass" at number one during that period.