May 2015 April 2015 - $1227.22 March 2015 - $618.23 February 2015 - $362.41 January 2015 - $1933.36 December 2014 - $1064.35 October 2014 - $2528.81 November 2014 - $699.37 September 2014 - $2135.90 August 2014 - $4,213.69 July 2014- $1853.72 June 2014 - $211.20 May 2014 - $430.38 April 2014 - $1,219.60 March 2014 - $4,366.20 February 2014 - $1,898.20 January 2014 - $6,788.67 December 2013- $1,562.13 November 2013 - $1,014.99 October 2013 - $2,924.60 September 2013 - $1,008.49 August 2013 - $348.70 July 2013 - $1,721.06 June 2013 - $629.68 May 2013 - $2,155.03 April 2013 - $4,430.21 March 2013 - $1,844.03 February 2013 - $524.87 January 2013 - $15,732.48 December 2012 - $2,737.61 November 2012 - $739.90 October 2012 - $790.02 September 2012 - $3,587.06 August 2012 - $2,343.45 July 2012 - $1,832.94 June 2012 - $2,114.09 May 2012 - $100.10 April 2012 - $1,179.60 March 2012 - $1,549.56 February 2012 - $116.19 January 2012 - $182.65 December 2011 - $197.35 November 2011 - $161.28 October 2011 - $3,134.91 September 2011 - $815.33 August 2011 - $11,904.57 July 2011 - $1.501.06 June 2011 - $1,372.88 May 2011 - $2,067.12 April 2011 - $3,444.69 March 2011 - $4,385.36 February 2011 - $889.60 January 2011 - $821.72 December 2010 - $635.35 November 2010 - $990.92 October 2010 - $1,697.43 September 2010 - $16,756.55 August 2010 - $4512.01 July 2010 - $2,083.15 June 2010 - $602.44 May 2010 - $1,474.35 April 2010 - $2,794.20 March 2010 - $3,485.00 February 2010 - $1,699.75 January 2010 - $37,840.25 December 2009 - $1,386.95 November 2009 - $63.20 October 2009 - $1,122.70 September 2009 - $7,182.40 August 2009 - $1,377.00 July 2009 - $1,528.85 June 2009 - $1,982.95 May 2009 - $1,511.05 April 2009 - $1,327.50 March 2009 - $711.50 February 2009 - $3,235.15 January 2009 - $844.50 December 2008 - $1,564.85 November 2008 - $109.70 October 2008 - $9,954.70 September 2008 - $1,530.20 August 2008 - $801.70 July 2008 - $5,849.70 June 2008 - $1,590.45 May 2008 - $3,108.00 April 2008 - $710.00 March 2008 - $4,262.35 February 2008 - $3,610.40 January 2008 - $207.20 December 2007 - $502.05 November 2007 - $2,016.20 October 2007 - $728.25 September 2007 - $822.55 August 2007 - $3,128.45 July 2007 - $2,637.00 June 2007 - $663.30 May 2007 - $5,881.50 April 2007 - $3,900.15 March 2007 - $2,904.80 February 2007 - $2,247.95 January 2007 - $11,664.85