self-employed vs temporary

self-employed

adj

  • Working for oneself, rather than for an employer. 

temporary

adj

  • Existing only for a short time or short times; transient, ephemeral. 

  • Not permanent; existing only for a period or periods of time. 

noun

  • A temporary variable. 

  • One serving for a limited time; short-term employee. 

How often have the words self-employed and temporary occurred in a corpus of books? (source: Google Ngram Viewer )