All these lists use the inverse point system posted below.   Link to Hot 100 GOAT List   Multipliers August 4, 1958 - December 27, 1969 x1.7 January 3, 1970 - December 30, 1972: x1.6 January 6, 1973 - December 25, 1976: x2.0 January 1, 1977 - December 29, 1984: x1.6 January 5, 1985 - November 23, 1991: x2.0 November 30, 1991 - March 17, 2012: x1.0 March 24, 2012 - December 28, 2013: x0.9 January 4, 2014 - November 26, 2016: x0.85 December 3, 2016 - December