Figure 4. Comparison of PPI semiconductors primary products index with counterfactual primary products indexes, January 2009 to January 2017
Index value Min BIC Min MSE Official PPI

Jan 2009

49.5 49.5 49.5

Feb 2009

49.8 49.8 49.8

Mar 2009

49.2 49.2 49.2

Apr 2009

48.6 48.6 48.6

May 2009

48.8 48.8 48.8

Jun 2009

48.7 48.7 48.7

Jul 2009

48.2 48.2 48.2

Aug 2009

48.3 48.3 48.3

Sep 2009

48.3 48.3 48.3

Oct 2009

48.4 48.4 48.5

Nov 2009

49.0 49.0 49.1

Dec 2009

48.9 48.9 48.9

Jan 2010

48.0 48.0 48.2

Feb 2010

48.4 48.4 48.6

Mar 2010

48.2 48.2 48.4

Apr 2010

48.0 48.0 48.2

May 2010

48.0 48.0 48.2

Jun 2010

47.4 47.4 47.6

Jul 2010

47.6 47.5 47.8

Aug 2010

46.8 46.7 47.0

Sep 2010

46.3 46.3 46.4

Oct 2010

45.7 45.7 45.9

Nov 2010

44.0 44.0 44.2

Dec 2010

43.5 43.5 43.7

Jan 2011

43.4 43.4 43.6

Feb 2011

44.0 44.0 44.1

Mar 2011

43.7 43.7 43.9

Apr 2011

43.5 43.4 43.6

May 2011

43.5 43.5 43.7

Jun 2011

43.5 43.5 43.7

Jul 2011

43.2 43.2 43.4

Aug 2011

42.8 42.8 43.0

Sep 2011

41.7 41.7 41.9

Oct 2011

41.6 41.6 41.8

Nov 2011

40.7 40.7 40.9

Dec 2011

39.8 39.8 40.0

Jan 2012

39.3 39.2 39.5

Feb 2012

39.3 39.2 39.5

Mar 2012

39.2 39.1 39.4

Apr 2012

39.3 39.2 39.5

May 2012

39.7 39.6 39.9

Jun 2012

39.1 39.0 39.3

Jul 2012

38.6 38.7 39.2

Aug 2012

38.3 38.4 38.9

Sep 2012

38.2 38.3 38.8

Oct 2012

38.0 38.1 38.8

Nov 2012

37.8 37.8 38.6

Dec 2012

37.5 37.5 38.2

Jan 2013

37.5 37.6 38.3

Feb 2013

37.5 37.5 38.2

Mar 2013

37.1 37.2 37.9

Apr 2013

37.8 37.8 38.5

May 2013

38.2 38.2 38.9

Jun 2013

38.2 38.2 38.9

Jul 2013

38.3 38.3 38.9

Aug 2013

38.1 38.1 38.7

Sep 2013

37.7 37.8 38.4

Oct 2013

37.8 37.8 38.5

Nov 2013

37.8 37.9 38.5

Dec 2013

37.8 37.9 38.5

Jan 2014

37.0 37.1 37.8

Feb 2014

36.9 36.9 37.6

Mar 2014

36.7 36.8 37.5

Apr 2014

36.6 36.6 37.4

May 2014

36.5 36.6 37.4

Jun 2014

36.6 36.6 37.4

Jul 2014

36.7 36.8 37.5

Aug 2014

36.7 36.7 37.4

Sep 2014

36.7 36.7 37.5

Oct 2014

36.6 36.7 37.5

Nov 2014

36.5 36.6 37.4

Dec 2014

36.5 36.5 37.3

Jan 2015

36.2 36.3 37.2

Feb 2015

36.3 36.4 37.3

Mar 2015

36.3 36.3 37.2

Apr 2015

36.2 36.2 37.1

May 2015

36.3 36.4 37.2

Jun 2015

35.9 36.0 36.8

Jul 2015

36.0 36.1 36.9

Aug 2015

35.7 35.8 36.6

Sep 2015

35.6 35.7 36.5

Oct 2015

35.6 35.7 36.5

Nov 2015

35.6 35.7 36.4

Dec 2015

35.5 35.6 36.3

Jan 2016

34.8 34.9 35.9

Feb 2016

34.6 34.7 35.7

Mar 2016

34.5 34.6 35.6

Apr 2016

34.5 34.6 35.6

May 2016

34.5 34.5 35.6

Jun 2016

34.4 34.4 35.5

Jul 2016

34.4 34.5 35.5

Aug 2016

34.3 34.4 35.4

Sep 2016

34.3 34.4 35.4

Oct 2016

33.8 33.9 35.2

Nov 2016

33.8 33.8 35.1

Dec 2016

33.8 33.9 35.1

Jan 2017

34.2 34.2 35.6

Note: BIC = Bayesian information criterion, MSE = mean squared error, and PPI = Producer Price Index.

Source: U.S. Bureau of Labor Statistics.