0 1 2 3 Tue 10 Jan 1978 Wed 01 Feb 1978 Wed 01 Mar 1978 Sat 01 Apr 1978 Mon 01 May 1978 Thu 01 Jun 1978 Sat 01 Jul 1978 Tue 01 Aug 1978 Fri 01 Sep 1978 Sun 01 Oct 1978 Wed 01 Nov 1978 Fri 01 Dec 1978 Mon 01 Jan 1979 Tue 09 Jan 1979 Hours Slept Hours Slept Rolling Average Total Time in Bed Total Rolling Average
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