Figure 8. Employment in the mining and oil and gas field machinery industry, 2006–15, seasonally adjusted, in thousands
Year and month	Number employed
2006
January	59.0
February	60.3
March	60.9
April	61.6
May	62.4
June	63.5
July	65.5
August	65.9
September	66.4
October	66.4
November	67.2
December	67.5
2007
January	67.3
February	69.2
March	70.5
April	70.2
May	72.1
June	72.3
July	73.1
August	72.5
September	71.7
October	72.2
November	72.0
December	72.8
2008
January	73.6
February	73.7
March	74.5
April	75.7
May	75.9
June	77.0
July	76.1
August	77.8
September	79.4
October	80.7
November	81.4
December	81.1
2009
January	78.6
February	77.4
March	76.3
April	75.5
May	73.8
June	72.8
July	72.2
August	71.0
September	70.7
October	69.7
November	69.5
December	69.5
2010
January	69.6
February	69.7
March	69.5
April	69.8
May	71.0
June	71.4
July	71.9
August	73.1
September	73.6
October	74.1
November	74.6
December	75.3
2011
January	76.5
February	77.0
March	76.9
April	78.5
May	79.5
June	81.4
July	81.4
August	82.2
September	82.7
October	82.6
November	84.8
December	86.0
2012
January	86.9
February	88.9
March	89.4
April	90.0
May	90.2
June	91.0
July	91.4
August	92.1
September	91.6
October	92.6
November	92.4
December	93.0
2013
January	92.9
February	93.1
March	93.9
April	94.1
May	94.0
June	93.8
July	94.4
August	94.1
September	94.3
October	93.4
November	93.2
December	92.6
2014
January	93.0
February	93.3
March	93.5
April	95.2
May	96.5
June	97.2
July	97.9
August	98.4
September	96.2
October	99.5
November	99.8
December	99.5
2015
January	99.3
February	95.9
March	94.3
April	90.9
May	87.9
June	85.4
July	83.9
August	82.4
September	80.9
October	79.0
November	76.7
December	74.9
Source: U.S. Bureau of Labor Statistics, Current Employment Statistics survey.