for June average price I predicted : June 1, 2015 $241.96
No, you predicted $241.96 for June 1.
Not on average for June.
Price on June 1 was more like 220-230$.
Also, you predicted $243.78 for July 1.
We will see
I made my chart using MS office Excel. when I entered "June 2015" it automatically turned it to "June 1, 2015". But, actually I made the chart using avg. monthly price ! You may see the whole price lists in that post below :Time Price
July 1, 2010 $0.09
August 1, 2010 $0.06
September 1, 2010 $0.06
October 1, 2010 $0.06
November 1, 2010 $0.20
December 1, 2010 $0.25
January 1, 2011 $0.30
February 1, 2011 $0.72
March 1, 2011 $0.94
April 1, 2011 $0.77
May 1, 2011 $3.03
June 1, 2011 $10.60
July 1, 2011 $15.40
August 1, 2011 $13.09
September 1, 2011 $8.21
October 1, 2011 $5.03
November 1, 2011 $3.15
December 1, 2011 $3.06
January 1, 2012 $5.27
February 1, 2012 $6.08
March 1, 2012 $4.92
April 1, 2012 $4.83
May 1, 2012 $5.00
June 1, 2012 $5.27
July 1, 2012 $6.63
August 1, 2012 $9.55
September 1, 2012 $9.97
October 1, 2012 $12.40
November 1, 2012 $10.57
December 1, 2012 $12.56
January 1, 2013 $13.30
February 1, 2013 $20.50
March 1, 2013 $34.50
April 1, 2013 $104.00
May 1, 2013 $116.38
June 1, 2013 $129.30
July 1, 2013 $84.61
August 1, 2013 $96.42
September 1, 2013 $128.26
October 1, 2013 $125.49
November 1, 2013 $198.51
December 1, 2013 $946.92
January 1, 2014 $770.44
February 1, 2014 $853.02
March 1, 2014 $563.74
April 1, 2014 $478.72
May 1, 2014 $456.27
June 1, 2014 $629.02
July 1, 2014 $635.59
August 1, 2014 $595.08
September 1, 2014 $474.13
October 1, 2014 $381.33
November 1, 2014 $325.39
December 1, 2014 $378.64
January 1, 2015 $313.92
February 1, 2015 $226.40
March 1, 2015 $258.74
April 1, 2015 $246.55
May 1, 2015 $232.12
June 1, 2015 $241.96
July 1, 2015 $243.78
August 1, 2015 $234.54
September 1, 2015 $216.05
October 1, 2015 $205.14
November 1, 2015 $199.11
December 1, 2015 $198.83
January 1, 2016 $205.49
February 1, 2016 $207.97
March 1, 2016 $204.41
April 1, 2016 $204.14
May 1, 2016 $204.63
June 1, 2016 $205.41
July 1, 2016 $209.29
August 1, 2016 $217.67
September 1, 2016 $218.91
October 1, 2016 $226.00
November 1, 2016 $220.58
December 1, 2016 $226.27
January 1, 2017 $227.22
February 1, 2017 $247.92
March 1, 2017 $291.31
April 1, 2017 $541.26
May 1, 2017 $622.99
June 1, 2017 $719.99
July 1, 2017 $336.96
August 1, 2017 $383.76
September 1, 2017 $525.82
October 1, 2017 $509.10
November 1, 2017 $931.55
December 1, 2017 $1,223.40