The newbie Supercycle Wave I from April 1949 to January 1966 is 17 years long. Supercycle Wave II from January 1966 to October 1974 is 8 years long. Supercycle Wave III from October 1974 to October 1999 is 25 years long. If Supercycle Wave IV began in October 1999 and is 8 years long, Supercycle Wave V will be 13 years long in 2020. If Supercycle Wave V is an extended wave it may be 17+8+17+8+17 = 67 years long and will end in 2077. If the last Millennium Wave began in 1000 and is equal to the Roman Millennium Wave from 594 B.C. to 476 A.D. or 1069 years long it will end in 2069. So the extended Cycle Wave V may end around ~ 2070 when the Middle East run out of oil.