Bandstand - 1952 8-20 was released on:
USA: 23 January 1965
Days of Our Lives - 1965 1-820 was released on: USA: 7 February 1969
Attack of the Show - 2005 1-820 was released on: USA: 12 September 2008
Ryan's Hope - 1975 1-820 was released on: USA: 31 August 1978
Santa Barbara - 1984 1-820 was released on: USA: 5 November 1987
Late Night with Jimmy Fallon - 2009 1-820 was released on: USA: 15 November 2012
820
820
32% of 820 = 32% * 820 = 0.32 * 820 = 262.4
25% of 820= 25% * 820= 0.25 * 820= 205
2% of 820 = 2% * 820 = 0.02 * 820 = 16.4
820
They were being made in the early 1950's. How much earlier or later than 1952, I don't know. But they were made in 1952-53.