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Worried about losing your day job to some soulless machine? Well, you're not alone.

Some economists are even projecting that 47 percent of "job categories" will become susceptible to automation before the year 2030, according to The Economist.

But have no fear! According to a recent study by the Pew Research Center, there are certain jobs that appear to be safe from the robot takeover.

Here we've listed the 15 jobs that Pew found to be least vulnerable to mechanization, so if you're job is on the outs you now have a full list of more permanent options.

The jobs deemed least likely to become automated were those with the lowest routine-task intensity score (RTI), which was judged by how much of the work depended on "routine tasks with relatively little manual labor or abstract reasoning involved."

On each slide, we've included the total share of U.S. employment for the specified career in both 1980 and 2005, data which was provided by Pew. We've also included how many jobs are currently out there for said occupation, as well as the median pay, courtesy of the Bureau of Labor Statistics.

Athletes, sports instructors and officials
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Share of U.S. employment in 1980:

0.05 percent

Share of U.S. employment in 2005:

0.13 percent

No. of jobs (as of 2012):

14,900

Median pay:

$40,060 per year

Fire fighting, fire prevention and fire inspection occupations
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Share of U.S. employment in 1980:

0.34 percent

Share of U.S. employment in 2005:

0.33

No. of jobs (as of 2012):

12,200

Median pay:

$53,990 per year
$25.96 per hour

Railroad conductors and yardmasters
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Share of U.S. employment in 1980:

0.06 percent

Share of U.S. employment in 2005:

0.05 percent

No. of jobs (as of 2012):

43,100

Median pay:

$58,030 per year

Recreation and fitness workers
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Share of U.S. employment in 1980:

0.03 percent

Share of U.S. employment in 2005:

0.17 percent

No. of jobs (as of 2012):

345,400

Median pay:

$22,240 per year
$10.69 per hour

Foresters and conservation scientists
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Share of U.S. employment in 1980:

0.04 percent

Share of U.S. employment in 2005:

0.02 percent

No. of jobs (as of 2012):

34,200

Median pay:

$59,060 per year
$28.40 per hour

Public transportation attendants and inspectors
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Share of U.S. employment in 1980:

0.06 percent

Share of U.S. employment in 2005:

0.11 percent

No. of jobs (as of 2012):

84,800

Median pay:

$37,240 per year

Locomotive operators: Engineers and firemen
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Share of U.S. employment in 1980:

0.10 percent

Share of U.S. employment in 2005:

0.06 percent

No. of jobs (as of 2012):

113,800

Median pay:

$52,400 per year
$25.19 per hour

Kindergarten and earlier school teachers
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Share of U.S. employment in 1980:

0.12 percent

Share of U.S. employment in 2005:

0.32 percent

No. of jobs (as of 2012):

1,519,700

Median pay:

$53,090 per year

Archivists and curators
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Share of U.S. employment in 1980:

0.01 percent

Share of U.S. employment in 2005:

0.03 percent

No. of jobs (as of 2012):

29,300

Median pay:

$44,410 per year
$21.35 per hour

Police and detective, public service
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Share of U.S. employment in 1980:

0.59 percent

Share of U.S. employment in 2005:

0.75 percent

No. of jobs (as of 2012):

780,000

Median pay:

$56,980 per year
$27.40 per hour

Primary school teachers
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Share of U.S. employment in 1980:

1.96 percent

Share of U.S. employment in 2005:

2.20 percent

No. of jobs (as of 2012):

1,344,240

Median pay:

$56,320

Airplane pilots and navigators
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Share of U.S. employment in 1980:

0.08 percent

Share of U.S. employment in 2005:

0.13 percent

No. of jobs (as of 2012):

25,000

Median pay:

$122,530 per year
$58.91 per hour

Surveyors, cartographers, mapping scientists/technicians
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Share of U.S. employment in 1980:

0.11 percent

Share of U.S. employment in 2005:

0.10 percent

No. of jobs (as of 2012):

54,000

Median pay:

$39,670 per year
$19.07 per hour

Actors, directors and producers
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Share of U.S. employment in 1980:

0.06 percent

Share of U.S. employment in 2005:

0.13 percent

No. of jobs (as of 2012):

Directors, producers: 103,500

Actors: 79,800

Median pay:

Directors, producers: $71,350 per year
$34.31 per hour

Actors: $20.26 per hour

Bus drivers
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Share of U.S. employment in 1980:

0.30 percent

Share of U.S. employment in 2005:

0.33 percent

No. of jobs (as of 2012):

654,300

Median pay:

$29,550 per year
$14.21 per hour