Hot Sheet Index: December 12, 2018

  • Number of global podcast listeners in 2013: 23 million
  • Number of global podcast listeners in 2017: 78 million
     
  • Global podcast advertising spend in 2013: $45 million
  • Global radio advertising spend in 2013: $40.2 billion
     
  • Global podcast advertising spend in 2018: $650 million
  • Global radio advertising spend in 2018: $45.2 billion

Source: The Podcasting Revenue Boom Has Started