0 1 2 3 Fri 16 May 1980 Fri 23 May 1980 Fri 30 May 1980 Fri 06 Jun 1980 Fri 13 Jun 1980 Fri 20 Jun 1980 Fri 27 Jun 1980 Fri 04 Jul 1980 Fri 11 Jul 1980 Fri 18 Jul 1980 Fri 25 Jul 1980 Fri 01 Aug 1980 Hours Slept Hours Slept Rolling Average Total Time in Bed Total Rolling Average
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