Question: What was the release date of the final album produced by Creedence Clearwater Revival?

full_context: Document 1: Creedence Clearwater Revisited: Creedence Clearwater Revisited is an American rock band formed in 1995 by two former members of Creedence Clearwater Revival – a much more well-known band with a very similar name. It is known for playing the music that was originally made famous by Creedence Clearwater Revival. The two common band members are Stu Cook (bass) and Doug "Cosmo" Clifford (drums).
Document 2: Creedence Gold: Creedence Gold is a compilation album of the band Creedence Clearwater Revival released in 1972. "More Creedence Gold" formed the second part, released in 1973.
Document 3: The Best of Creedence Clearwater Revival: The Best of Creedence Clearwater Revival is a compilation album by American rock band Creedence Clearwater Revival, released in 1977. The album features all the tracks of Chronicle which was released a year earlier in 1976, as well as "Good Golly Miss Molly", "Born on the Bayou", "Cotton Fields", "Hello Mary Lou", "The Midnight Special", "Walk on the Water", and "Night Time Is the Right Time" which would appear on the 1986 release "Chronicle, Vol. 2", and "Bootleg" which does not appear on either volume.
Document 4: Red (King Crimson album): Red is the seventh studio album by English progressive rock group King Crimson, released in 1974 by Island Records in the United Kingdom and by Atlantic Records in the United States. It was their last studio recording of the 1970s and the last before the lead member Robert Fripp temporarily disbanded the group. Though their lowest-charting album at the time, spending only one week in the UK charts, "Red" has received critical acclaim.
Document 5: Creedence Country: Creedence Country is a compilation album by American rock band Creedence Clearwater Revival (CCR). It was released by Fantasy Records in October 1981 (see 1981 in music) with the purpose of infiltrating the country market.
Document 6: Someday Never Comes: "Someday Never Comes" is a song by Creedence Clearwater Revival from their album "Mardi Gras" released in 1972 and written by the frontman John Fogerty. The song made it to #25 in May 1972 with Doug Clifford's "Tearin' up the Country" released as the B-side. This is the final song for Creedence Clearwater Revival before they officially broke up in 1972.
Document 7: More Creedence Gold: More Creedence Gold is an album by the band Creedence Clearwater Revival and was released in 1973. It is the follow-up to the album "Creedence Gold", which was released in 1972.
Document 8: Creedence Clearwater Revival: Box Set: Creedence Clearwater Revival: Box Set is a box set by Creedence Clearwater Revival, released in 2001. It contains all of their complete studio albums, two complete live albums, and material recorded by the band under their previous names "The Golliwogs" and "The Blue Velvets". In November 2013 the box set was reissued with different artwork. This box set spans their career, and contains all of their complete materials.
Document 9: Doug Clifford: Douglas "Cosmo" Clifford (born April 24, 1945 in Palo Alto, California) is an American drummer, best known as a founding member of Creedence Clearwater Revival. After the group dissolved in the early 1970s, Clifford released a solo album and later joined CCR bassist Stu Cook in the Don Harrison Band. In 1995, Clifford and Cook formed the band Creedence Clearwater Revisited, performing live versions of Creedence Clearwater Revival songs.
Document 10: Creedence Clearwater Revival: Creedence Clearwater Revival, often informally abbreviated to Creedence or CCR, was an American rock band active in the late 1960s and early 1970s.
Document 11: Pre-Creedence: Pre-Creedence is a compilation album by The Golliwogs which changed its name to Creedence Clearwater Revival (CCR) in 1968. This album was released in 1975 after the band had disbanded.
Document 12: Creedence Clearwater Revival (album): Creedence Clearwater Revival is the debut studio album by the American rock band Creedence Clearwater Revival, released in 1968.
Document 13: Mardi Gras (album): Mardi Gras is the seventh and final studio album by American band Creedence Clearwater Revival, released on April 11, 1972. The group disbanded after this album was released.
Document 14: Creedence Clearwater Revival Covers the Classics: Creedence Clearwater Revival Covers the Classics is a compilation album by Creedence Clearwater Revival. Released in 2009, the album contains cover versions of songs as recorded by the band.
Document 15: Grand Funk Railroad: Grand Funk Railroad, sometimes shortened as Grand Funk, is an American rock band popular during the 1970s, when they toured extensively and played to packed arenas worldwide. David Fricke of "Rolling Stone" magazine once said, "You cannot talk about rock in the 1970s without talking about Grand Funk Railroad!" Known for their crowd-pleasing arena rock style, the band was well-regarded by audiences despite a relative lack of critical acclaim. The band's name is a play on words of the Grand Trunk Western Railroad, a line that ran through the band's home town of Flint, Michigan.
ground_truth: April 11, 1972