0
30
2000
Sample assessments during 2000-W30
36
2003
Sample assessments during 2003-W36
20
1991
Sample assessments during 1991-W20
35
1998
Sample assessments during 1998-W35
32
2006
Sample assessments during 2006-W32
21
1989
Sample assessments during 1989-W21
22
1997
Sample assessments during 1997-W22
24
2009
Sample assessments during 2009-W24
34
2001
Sample assessments during 2001-W34
24
1992
Sample assessments during 1992-W24
21
2000
Sample assessments during 2000-W21
27
2003
Sample assessments during 2003-W27
36
2007
Sample assessments during 2007-W36
20
1995
Sample assessments during 1995-W20
26
1998
Sample assessments during 1998-W26
23
2006
Sample assessments during 2006-W23
37
1988
Sample assessments during 1988-W37
34
2005
Sample assessments during 2005-W34
21
2004
Sample assessments during 2004-W21
27
2007
Sample assessments during 2007-W27
34
1999
Sample assessments during 1999-W34
30
2008
Sample assessments during 2008-W30
30
1991
Sample assessments during 1991-W30
36
1994
Sample assessments during 1994-W36
29
1996
Sample assessments during 1996-W29
20
2010
Sample assessments during 2010-W20
31
1989
Sample assessments during 1989-W31
18
2007
Sample assessments during 2007-W18
32
1997
Sample assessments during 1997-W32
25
1999
Sample assessments during 1999-W25
21
2008
Sample assessments during 2008-W21
37
2003
Sample assessments during 2003-W37
27
1994
Sample assessments during 1994-W27
30
1995
Sample assessments during 1995-W30
36
1998
Sample assessments during 1998-W36
23
1997
Sample assessments during 1997-W23
35
2001
Sample assessments during 2001-W35
28
2003
Sample assessments during 2003-W28
31
2004
Sample assessments during 2004-W31
37
2007
Sample assessments during 2007-W37
24
2006
Sample assessments during 2006-W24
37
1990
Sample assessments during 1990-W37
26
2001
Sample assessments during 2001-W26
33
1993
Sample assessments during 1993-W33
38
1988
Sample assessments during 1988-W38
39
1996
Sample assessments during 1996-W39
30
2010
Sample assessments during 2010-W30
28
2007
Sample assessments during 2007-W28
1
50