Month Percent 1982-01-31 3.15 1982-02-28 3.19 1982-03-31 2.76 1982-04-30 3 1982-05-31 3.05 1982-06-30 3.09 1982-07-31 3.11 1982-08-31 2.94 1982-09-30 2.99 1982-10-31 2.59 1982-11-30 2.74 1982-12-31 2.69 1983-01-31 2.46 1983-02-28 2.49 1983-03-31 2.53 1983-04-30 2.58 1983-05-31 2.96 1983-06-30 3.04 1983-07-31 3.24 1983-08-31 3.16 1983-09-30 3.13 1983-10-31 3.08 1983-11-30 3.13 1983-12-31 3.13 1984-01-31 3.16 1984-02-29 3.3 1984-03-31 3.29 1984-04-30 3.29 1984-05-31 3.54 1984-06-30 3.61 1984-07-31 3.89 1984-08-31 3.69 1984-09-30 3.64 1984-10-31 3.27 1984-11-30 3.31 1984-12-31 3.29 1985-01-31 3.31 1985-02-28 3.15 1985-03-31 3.32 1985-04-30 3.43 1985-05-31 3.57 1985-06-30 3.62 1985-07-31 3.58 1985-08-31 3.53 1985-09-30 3.57 1985-10-31 3.66 1985-11-30 3.71 1985-12-31 3.86 1986-01-31 3.93 1986-02-28 3.77 1986-03-31 3.87 1986-04-30 3.43 1986-05-31 3.38 1986-06-30 3.54 1986-07-31 3.64 1986-08-31 3.58 1986-09-30 3.87 1986-10-31 3.96 1986-11-30 3.95 1986-12-31 3.96 1987-01-31 3.84 1987-02-28 3.48 1987-03-31 3.44 1987-04-30 3.68 1987-05-31 3.74 1987-06-30 3.99 1987-07-31 3.95 1987-08-31 4.12 1987-09-30 4.25 1987-10-31 4.47 1987-11-30 3.86 1987-12-31 4.01 1988-01-31 4.04 1988-02-29 3.91 1988-03-31 3.85 1988-04-30 3.81 1988-05-31 3.92 1988-06-30 3.94 1988-07-31 3.91 1988-08-31 3.97 1988-09-30 3.97 1988-10-31 3.64 1988-11-30 3.77 1988-12-31 3.87 1989-01-31 3.72 1989-02-28 3.59 1989-03-31 3.57 1989-04-30 3.68 1989-05-31 3.84 1989-06-30 3.81 1989-07-31 3.57 1989-08-31 3.54 1989-09-30 3.69 1989-10-31 3.67 1989-11-30 3.8 1989-12-31 3.7 1990-01-31 3.87 1990-02-28 4.08 1990-03-31 4.27 1990-04-30 4.46 1990-05-31 4.37 1990-06-30 4.36 1990-07-31 4.46 1990-08-31 4.43 1990-09-30 4.47 1990-10-31 4.42 1990-11-30 4.24 1990-12-31 4.27 1991-01-31 4.24 1991-02-28 4.25 1991-03-31 4.22 1991-04-30 4.22 1991-05-31 4.27 1991-06-30 4.4 1991-07-31 4.44 1991-08-31 4.33 1991-09-30 4.22 1991-10-31 4.24 1991-11-30 4.32 1991-12-31 4.48 1992-01-31 4.3 1992-02-29 4.32 1992-03-31 4.6 1992-04-30 4.55 1992-05-31 4.36 1992-06-30 4.4 1992-07-31 4.66 1992-08-31 4.86 1992-09-30 4.13 1992-10-31 3.56 1992-11-30 3.74 1992-12-31 3.72 1993-01-31 3.57 1993-02-28 3.25 1993-03-31 3.18 1993-04-30 3.33 1993-05-31 3.37 1993-06-30 3.32 1993-07-31 3.22 1993-08-31 3.07 1993-09-30 3.06 1993-10-31 2.96 1993-11-30 2.91 1993-12-31 2.67 1994-01-31 2.72 1994-02-28 3.08 1994-03-31 3.25 1994-04-30 3.34 1994-05-31 3.75 1994-06-30 3.88 1994-07-31 3.93 1994-08-31 3.73 1994-09-30 3.83 1994-10-31 3.88 1994-11-30 3.82 1994-12-31 3.86 1995-01-31 3.87 1995-02-28 3.87 1995-03-31 3.84 1995-04-30 3.78 1995-05-31 3.51 1995-06-30 3.73 1995-07-31 3.58 1995-08-31 3.49 1995-09-30 3.59 1995-10-31 3.63 1995-11-30 3.47 1995-12-31 3.44 1996-01-31 3.47 1996-02-29 3.7 1996-03-31 3.69 1996-04-30 3.63 1996-05-31 3.83 1996-06-30 3.77 1996-07-31 3.71 1996-08-31 3.62 1996-09-30 3.47 1996-10-31 3.47 1996-11-30 3.32 1996-12-31 3.4 1997-01-31 3.4 1997-02-28 3.3 1997-03-31 3.52 1997-04-30 3.49 1997-05-31 3.63 1997-06-30 3.63 1997-07-31 3.57 1997-08-31 3.59 1997-09-30 3.3 1997-10-31 3.12 1997-11-30 3.12 1997-12-31 3.02 1998-01-31 3.02 1998-02-28 2.91 1998-03-31 2.85 1998-04-30 2.95 1998-05-31 2.92 1998-06-30 3.01 1998-07-31 2.86 1998-08-31 2.61 1998-09-30 2.68 1998-10-31 2.56 1998-11-30 2.32 1998-12-31 1.95 1999-01-31 1.85 1999-02-28 1.85 1999-03-31 1.72 1999-04-30 1.81 1999-05-31 1.86 1999-06-30 1.89 1999-07-31 1.95 1999-08-31 2.2 1999-09-30 2.17 1999-10-31 2.16 1999-11-30 2.06 1999-12-31 2 2000-01-31 2.47 2000-02-29 2.35 2000-03-31 2.55 2000-04-30 2.45 2000-05-31 2.59 2000-06-30 2.44 2000-07-31 2.68 2000-08-31 2.77 2000-09-30 2.79 2000-10-31 2.9 2000-11-30 2.71 2000-12-31 2.66 2001-01-31 2.65 2001-02-28 2.83 2001-03-31 2.87 2001-04-30 2.99 2001-05-31 2.89 2001-06-30 2.88 2001-07-31 2.92 2001-08-31 2.73 2001-09-30 2.58 2001-10-31 2.4 2001-11-30 2.6 2001-12-31 2.87 2002-01-31 2.58 2002-02-28 2.4 2002-03-31 2.44 2002-04-30 2.41 2002-05-31 2.37 2002-06-30 2.22 2002-07-31 2.45 2002-08-31 2.18 2002-09-30 2.17 2002-10-31 2.16 2002-11-30 2.18 2002-12-31 1.88 2003-01-31 1.53 2003-02-28 1.19 2003-03-31 1.22 2003-04-30 1.11 2003-05-31 0.89 2003-06-30 0.9 2003-07-31 1.24 2003-08-31 1.54 2003-09-30 1.3 2003-10-31 1.82 2003-11-30 1.71 2003-12-31 1.25 2004-01-31 1.46 2004-02-29 1.25 2004-03-31 1.19 2004-04-30 1.52 2004-05-31 1.8 2004-06-30 1.9 2004-07-31 1.97 2004-08-31 1.54 2004-09-30 1.41 2004-10-31 1.45 2004-11-30 1.5 2004-12-31 1.58 2005-01-31 1.55 2005-02-28 1.86 2005-03-31 1.81 2005-04-30 1.77 2005-05-31 1.93 2005-06-30 1.74 2005-07-31 1.65 2005-08-31 1.51 2005-09-30 1.17 2005-10-31 1.45 2005-11-30 1.37