How accurate is the BLS data?

[Justin Brin]

I'm trying to compare areas by how diversify their economy so I'm looking at the BLS data report for Columbus OH and I see the numbers are a bit off:
The Civilian labor force is 1,120.7 while the Total Nonfarm jobs are 1,157.1 (36k difference).
As much as I understand Civilian labor force is the total potential force and Total Nonfarm is a percentage of the Civilian labor force.
Am I wrong?
Is the data discrepancy due to these two fields come form two different data sources and since this is statistical data then there can be a difference in the data?

(Data source link: https://www.bls.gov/regions/midwest/oh_columbus_msa.htm#eag_...)