0 1 2 3 Sat 11 Jan 1975 Sat 01 Feb 1975 Sat 01 Mar 1975 Tue 01 Apr 1975 Thu 01 May 1975 Sun 01 Jun 1975 Tue 01 Jul 1975 Fri 01 Aug 1975 Mon 01 Sep 1975 Wed 01 Oct 1975 Sat 01 Nov 1975 Mon 01 Dec 1975 Thu 01 Jan 1976 Sat 10 Jan 1976 Hours Slept Hours Slept Rolling Average Total Time in Bed Total Rolling Average
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