1 Higher G 36 18 not-present N = 10 British Week:1999-W24 false 1999-06-16T14:40:00 Skinburness sample assessment for 1999-W24 < 18 10 10 British Week:2000-W21 Skinburness sample assessment for 2000-W21 2000-05-22T14:25:00 false 27 10 false Skinburness sample assessment for 2001-W28 British Week:2001-W28 2001-07-09T13:41:00 10 1990-09-26T11:45:00 10 Skinburness sample assessment for 1990-W39 n/a not-assessed British Week:1990-W39 10 Minimum I false British Week:1995-W26 false Skinburness sample assessment for 1995-W26 10 10 1995-06-27T10:45:00 10 0 British Week:1996-W20 10 1996-05-14T11:35:00 Skinburness sample assessment for 1996-W20 false 10 10 10 false 10 10 1996-05-16T12:25:00 Skinburness sample assessment for 1996-W20 Skinburness sample assessment for 1996-W24 10 1996-06-14T12:00:00 10 10 British Week:1996-W24 false British Week:1996-W37 10 false 10 Skinburness sample assessment for 1996-W37 1996-09-09T09:15:00 40 1997-06-05T12:11:00 10 10 false Skinburness sample assessment for 1997-W23 10 British Week:1997-W23 10 0