Month Percent per Annum 1977-03-01 17.7700 1977-04-01 16.7300 1977-05-01 16.5600 1977-06-01 15.4000 1977-07-01 15.0200 1977-08-01 14.7800 1977-09-01 13.1300 1977-10-01 13.1200 1977-11-01 12.8900 1977-12-01 12.6500 1978-01-01 12.2500 1978-02-01 12.2800 1978-03-01 12.3000 1978-04-01 12.0900 1978-05-01 11.9400 1978-06-01 11.8700 1978-07-01 11.9500 1978-08-01 11.8900 1978-09-01 11.7600 1978-10-01 11.7500 1978-11-01 11.8200 1978-12-01 11.9700 1979-01-01 11.9600 1979-02-01 12.0800 1979-03-01 12.1100 1979-04-01 12.0000 1979-05-01 11.8000 1979-06-01 12.0700 1979-07-01 12.0500 1979-08-01 12.0400 1979-09-01 12.0800 1979-10-01 12.9300 1979-11-01 13.1600 1979-12-01 15.8600 1980-01-01 14.3500 1980-02-01 15.6400 1980-03-01 15.7300 1980-04-01 15.7900 1980-05-01 15.6700 1980-06-01 15.7600 1980-07-01 15.9600 1980-08-01 15.9400 1980-09-01 15.5100 1980-10-01 16.9100 1980-11-01 16.9000 1980-12-01 16.8200 1981-01-01 16.8700 1981-02-01 16.8500 1981-03-01 18.9400 1981-04-01 18.7600 1981-05-01 19.7400 1981-06-01 19.8600 1981-07-01 20.1500 1981-08-01 20.6300 1981-09-01 20.3400 1981-10-01 21.2900 1981-11-01 21.4300 1981-12-01 21.5700 1982-01-01 20.8200 1982-02-01 20.2500 1982-03-01 19.6500 1982-04-01 20.1925 1982-05-01 20.3224 1982-06-01 19.3300 1982-07-01 19.2484 1982-08-01 18.8940 1982-09-01 17.9500 1982-10-01 18.2200 1982-11-01 19.2047 1982-12-01 19.1700 1983-01-01 19.1600 1983-02-01 18.9700 1983-03-01 18.7300 1983-04-01 18.1762 1983-05-01 17.7097 1983-06-01 17.5004 1983-07-01 17.5114 1983-08-01 17.4800 1983-09-01 17.4100 1983-10-01 17.3900 1983-11-01 17.4100 1983-12-01 17.2900 1984-01-01 16.7200 1984-02-01 15.9100 1984-03-01 15.7100 1984-04-01 15.5700 1984-05-01 15.1600 1984-06-01 15.0200 1984-07-01 15.0600 1984-08-01 15.0800 1984-09-01 15.3407 1984-10-01 15.2363 1984-11-01 14.9000 1984-12-01 14.7000 1985-01-01 13.7700 1985-02-01 13.4200 1985-03-01 13.4000 1985-04-01 14.2317 1985-05-01 14.1533 1985-06-01 14.1200 1985-07-01 14.0685 1985-08-01 14.0009 1985-09-01 13.7925 1985-10-01 13.2644 1985-11-01 13.1788 1985-12-01 13.1400 1986-01-01 13.5800 1986-02-01 13.4000 1986-03-01 13.0700 1986-04-01 12.2800 1986-05-01 11.1800 1986-06-01 10.7400 1986-07-01 10.7500 1986-08-01 10.4400 1986-09-01 10.5400 1986-10-01 10.3500 1986-11-01 10.2700 1986-12-01 10.2500 1987-01-01 10.1400 1987-02-01 9.9300 1987-03-01 9.9200 1987-04-01 9.8307 1987-05-01 9.9151 1987-06-01 9.8832 1987-07-01 10.8536 1987-08-01 10.9340 1987-09-01 11.7963 1987-10-01 11.9568 1987-11-01 12.0378 1987-12-01 11.5550 1988-01-01 11.8051 1988-02-01 10.6563 1988-03-01 10.6804 1988-04-01 10.8073 1988-05-01 10.8342 1988-06-01 10.7073 1988-07-01 11.3001 1988-08-01 11.3204 1988-09-01 11.4696 1988-10-01 11.4745 1988-11-01 11.5013 1988-12-01 11.6803 1989-01-01 11.5709 1989-02-01 11.6191 1989-03-01 13.1668 1989-04-01 12.6529 1989-05-01 12.2655 1989-06-01 10.9826 1989-07-01 12.6202 1989-08-01 12.9170 1989-09-01 12.8704 1989-10-01 13.2344 1989-11-01 13.7353 1989-12-01 13.3205 1990-01-01 12.9536 1990-02-01 12.7133 1990-03-01 13.1308 1990-04-01 12.9391 1990-05-01 12.0493 1990-06-01 11.3696 1990-07-01 11.6584 1990-08-01 12.0386 1990-09-01 11.6123 1990-10-01 11.8929 1990-11-01 12.6399 1990-12-01 13.5456 1991-01-01 13.0123 1991-02-01 13.2679 1991-03-01 12.7470 1991-04-01 12.3364 1991-05-01 11.8977 1991-06-01 11.9538 1991-07-01 12.3057 1991-08-01 12.6732 1991-09-01 12.3462 1991-10-01 12.0483 1991-11-01 12.4865 1991-12-01 13.3638 1992-01-01 12.1819 1992-02-01 12.3156 1992-03-01 12.8300 1992-04-01 13.3530 1992-05-01 13.2440 1992-06-01 14.0035 1992-07-01 15.2433 1992-08-01 15.1576 1992-09-01 17.9786 1992-10-01 15.8501 1992-11-01 15.3275 1992-12-01 14.3299 1993-01-01 12.3774 1993-02-01 12.0466 1993-03-01 12.4970 1993-04-01 12.4294 1993-05-01 11.4853 1993-06-01 10.4638 1993-07-01 10.0549 1993-08-01 9.7064 1993-09-01 9.1030 1993-10-01 9.0560 1993-11-01 9.3677 1993-12-01 8.3794 1994-01-01 8.5891 1994-02-01 8.7839 1994-03-01 8.9566 1994-04-01 8.7076 1994-05-01 8.0893 1994-06-01 8.7600 1994-07-01 8.9840 1994-08-01 9.8015 1994-09-01 9.7275 1994-10-01 10.0725 1994-11-01 9.7022 1994-12-01 9.8064 1995-01-01 10.0116 1995-02-01 10.1463 1995-03-01 11.8701 1995-04-01 11.5745 1995-05-01 10.7165 1995-06-01 11.1244 1995-07-01 11.0358 1995-08-01 10.6241 1995-09-01 10.7839 1995-10-01 11.1788 1995-11-01 10.6851 1995-12-01 10.4440 1996-01-01 9.6289 1996-02-01 9.7092 1996-03-01 9.7525 1996-04-01 9.0681 1996-05-01 8.7087 1996-06-01 8.2976 1996-07-01 8.4732 1996-08-01 8.6496 1996-09-01 8.0982 1996-10-01 7.4809 1996-11-01 6.9262 1996-12-01 6.7570 1997-01-01 6.7426 1997-02-01 6.7622 1997-03-01 7.1998 1997-04-01 6.6724 1997-05-01 6.4381 1997-06-01 6.5371 1997-07-01 6.4914 1997-08-01 6.4977 1997-09-01 5.8245 1997-10-01 5.9760 1997-11-01 5.7621 1997-12-01 5.0963 1998-01-01 5.4296 1998-02-01 5.6597 1998-03-01 5.0966 1998-04-01 4.9203 1998-05-01 4.8504 1998-06-01 4.8327 1998-07-01 4.5586 1998-08-01 4.4854 1998-09-01 4.2394 1998-10-01 4.1061 1998-11-01 3.8606 1998-12-01 3.0664 1999-01-01 3.0733 1999-02-01 3.0215 1999-03-01 3.0136 1999-04-01 2.6333 1999-05-01 2.6110 1999-06-01 2.7046 1999-07-01 2.8224 1999-08-01 2.9405 1999-09-01 2.9392 1999-10-01 3.3954 1999-11-01 3.3524 1999-12-01 3.5700 2000-01-01 3.6230 2000-02-01 3.7937 2000-03-01 4.0288 2000-04-01 4.1453 2000-05-01 4.5311 2000-06-01 4.7960 2000-07-01 4.7315 2000-08-01 4.9082 2000-09-01 5.0170 2000-10-01 4.9927 2000-11-01 5.0439 2000-12-01 4.7235 2001-01-01 4.5724 2001-02-01 4.5793 2001-03-01 4.4534 2001-04-01 4.4413 2001-05-01 4.5232 2001-06-01 4.2706 2001-07-01 4.2964 2001-08-01 4.1060 2001-09-01 3.7506 2001-10-01 3.3704 2001-11-01 3.1105 2001-12-01 3.1452 2002-01-01 3.3606 2002-02-01 3.3767 2002-03-01 3.5387 2002-04-01 3.5367 2002-05-01 3.5186 2002-06-01 3.5522 2002-07-01 3.3770 2002-08-01 3.1964 2002-09-01 3.1305 2002-10-01 2.9735 2002-11-01 2.8708 2002-12-01 2.7399 2003-01-01 2.5357 2003-02-01 2.3934 2003-03-01 2.3253 2003-04-01 2.3336 2003-05-01 2.1646 2003-06-01 1.9179 2003-07-01 1.9803 2003-08-01 2.0878 2003-09-01 2.0931 2003-10-01 2.1099 2003-11-01 2.1553 2003-12-01 2.1589 2004-01-01 2.0183 2004-02-01 2.0175 2004-03-01 1.9038 2004-04-01 2.0015 2004-05-01 2.1124 2004-06-01 2.1445 2004-07-01 2.1240 2004-08-01 2.0880 2004-09-01 2.1587 2004-10-01 2.1036 2004-11-01 2.1498 2004-12-01 2.1319 2005-01-01 2.1243 2005-02-01 2.1393 2005-03-01 2.1461 2005-04-01 2.1036 2005-05-01 2.0529 2005-06-01 2.0141 2005-07-01 2.0560 2005-08-01 2.0902 2005-09-01 2.0824 2005-10-01 2.2041 2005-11-01 2.4885 2005-12-01 2.5673 2006-01-01 2.5916 2006-02-01 2.7070 2006-03-01 2.8002 2006-04-01 2.9020 2006-05-01 3.0396 2006-06-01 3.1146 2006-07-01 3.2862 2006-08-01 3.3613 2006-09-01 3.4949 2006-10-01 3.5862 2006-11-01 3.6021 2006-12-01 3.7069 2007-01-01 3.7994 2007-02-01 3.8675 2007-03-01 3.9228 2007-04-01 4.0332 2007-05-01 4.1006 2007-06-01 4.2128 2007-07-01 4.2744 2007-08-01 4.1368 2007-09-01 4.0550 2007-10-01 4.0231 2007-11-01 4.0104 2007-12-01 3.9926 2008-01-01 3.8631 2008-02-01 3.7330 2008-03-01 4.0321 2008-04-01 4.0342 2008-05-01 4.1200 2008-06-01 4.5000 2008-07-01 4.4600 2008-08-01 4.3600 2008-09-01 4.3100 2008-10-01 2.8500 2008-11-01 2.6000 2008-12-01 2.2300 2009-01-01 1.6200 2009-02-01 1.2800 2009-03-01 1.2000 2009-04-01 1.1600 2009-05-01 1.0300 2009-06-01 0.9700 2009-07-01 0.6700 2009-08-01 0.7100 2009-09-01 0.5900 2009-10-01 0.7400 2009-11-01 0.7500 2009-12-01 0.7400 2010-01-01 0.6100 2010-02-01 0.7900 2010-03-01 0.7300 2010-04-01 0.7900 2010-05-01 1.3700 2010-06-01 1.1000 2010-07-01 1.2100 2010-08-01 1.1400 2010-09-01 1.1400 2010-10-01 1.3100 2010-11-01 1.6100 2010-12-01 1.8000 2011-01-01 1.7300 2011-02-01 1.5700 2011-03-01 1.6300 2011-04-01 1.8200 2011-05-01 1.8500 2011-06-01 2.0600 2011-07-01 2.9700 2011-08-01 2.5200 2011-09-01 3.1000 2011-10-01 3.3300 2011-11-01 6.4000 2011-12-01 4.4500 2012-01-01 2.2400 2012-02-01 1.6400 2012-03-01 1.1300 2012-04-01 2.1500 2012-05-01 2.0000 2012-06-01 3.3900 2012-07-01 2.5700 2012-08-01 2.1200 2012-09-01 1.4900 2012-10-01 1.5200 2012-11-01 1.3100 2012-12-01 1.1800 2013-01-01 0.8000 2013-02-01 1.1700 2013-03-01 1.0300 2013-04-01 0.6400 2013-05-01 0.5800 2013-06-01 1.0100 2013-07-01 0.8400 2013-08-01 0.9652 2013-09-01 0.9995 2013-10-01 0.8318 2013-11-01 0.6146 2013-12-01 0.7819 2014-01-01 0.6677 2014-02-01 0.5619 2014-03-01 0.5464 2014-04-01 0.5919 2014-05-01 0.5713 2014-06-01 0.3900 2014-07-01 0.3100 2014-08-01 0.2100 2014-09-01 0.2500 2014-10-01 0.3400 2014-11-01 0.3000 2014-12-01 0.3500 2015-01-01 0.2000 2015-02-01 0.1500 2015-03-01 0.0600 2015-04-01 0.0100 2015-05-01 0.0200 2015-06-01 0.0600 2015-07-01 0.0650 2015-08-01 0.0890 2015-09-01 0.0300 2015-10-01 -0.0100 2015-11-01 -0.0700 2015-12-01 -0.0200 2016-01-01 -0.0800 2016-02-01 -0.0400 2016-03-01 -0.0600 2016-04-01 -0.1300 2016-05-01 -0.2000 2016-06-01 -0.1400 2016-07-01 -0.1800 2016-08-01 -0.2100 2016-09-01 -0.2200 2016-10-01 -0.2700 2016-11-01 -0.2100 2016-12-01 -0.2700 2017-01-01 -0.2700 2017-02-01 -0.2700 2017-03-01 -0.2600 2017-04-01 -0.2800 2017-05-01 -0.3300 2017-06-01 -0.3600 2017-07-01 -0.3600 2017-08-01 -0.3500 2017-09-01 -0.3500 2017-10-01 -0.3700 2017-11-01 -0.4200 2017-12-01 -0.4100 2018-01-01 -0.4300 2018-02-01 -0.4000 2018-03-01 -0.4200 2018-04-01 -0.4100 2018-05-01 0.4000 2018-06-01 0.3100 2018-07-01 0.2000 2018-08-01 0.5600 2018-09-01 0.3300