0 1 2 3 Wed 13 Feb 1991 Wed 20 Feb 1991 Wed 27 Feb 1991 Wed 06 Mar 1991 Wed 13 Mar 1991 Wed 20 Mar 1991 Wed 27 Mar 1991 Wed 03 Apr 1991 Wed 10 Apr 1991 Sat 13 Apr 1991 Hours Slept Hours Slept Rolling Average Total Time in Bed Total Rolling Average
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