| Year | Collect | Prepaid | Debit | 
  
    
      | 2018 | 0.14/min<br>$2.10/15 minutes | 0.14/min<br>$2.10/15 minutes | N/A | 
  
    
      | 2017 | 0.14/min<br>$2.10/15 minutes | 0.14/min<br>$2.10/15 minutes | N/A | 
  
    
      | 2016 | 0.14/min<br>$2.10/15 minutes | 0.14/min<br>$2.10/15 minutes | N/A | 
  
    
      | 2015 | 0.14/min<br>$2.10/15 minutes | 0.14/min<br>$2.10/15 minutes | N/A | 
  
    
      | 2014 | 0.14/min<br>$2.10/15 minutes | 0.14/min<br>$2.10/15 minutes | N/A | 
  
    
      | 2013 | 0.14/min<br>$2.10/15 minutes | 0.14/min<br>$2.10/15 minutes | N/A | 
  
    
      | 2012 | 0.14/min<br>$2.10/15 minutes | 0.14/min<br>$2.10/15 minutes | N/A | 
  
    
      | 2011 | 1.20 + 0.04/min<br>$1.80/15 minutes | 1.02 + 0.04/min<br>$1.62/15 minutes | 1.20 + 0.04/min<br>$1.80/15 minutes | 
  
    
      | 2010 | 1.20 + 0.04/min<br>$1.80/15 minutes | 1.02 + 0.04/min<br>$1.62/15 minutes | 1.20 + 0.04/min<br>$1.80/15 minutes | 
  
    
      | 2009 | 1.20 + 0.04/min<br>$1.80/15 minutes | 1.02 + 0.04/min<br>$1.62/15 minutes | 1.20 + 0.04/min<br>$1.80/15 minutes | 
  
  
    | Year | Collect | Prepaid | Debit | 
  
    
      | 2018 | 0.14/min<br>$2.10/15 minutes | 0.14/min<br>$2.10/15 minutes | N/A | 
  
    
      | 2017 | 0.14/min<br>$2.10/15 minutes | 0.14/min<br>$2.10/15 minutes | N/A | 
  
    
      | 2016 | 0.14/min<br>$2.10/15 minutes | 0.14/min<br>$2.10/15 minutes | N/A | 
  
    
      | 2015 | 0.14/min<br>$2.10/15 minutes | 0.14/min<br>$2.10/15 minutes | N/A | 
  
    
      | 2014 | 0.14/min<br>$2.10/15 minutes | 0.14/min<br>$2.10/15 minutes | N/A | 
  
    
      | 2013 | 0.14/min<br>$2.10/15 minutes | 0.14/min<br>$2.10/15 minutes | N/A | 
  
    
      | 2012 | 0.14/min<br>$2.10/15 minutes | 0.14/min<br>$2.10/15 minutes | N/A | 
  
    
      | 2011 | 1.20 + 0.04/min<br>$1.80/15 minutes | 1.02 + 0.04/min<br>$1.62/15 minutes | 1.20 + 0.04/min<br>$1.80/15 minutes | 
  
    
      | 2010 | 1.20 + 0.04/min<br>$1.80/15 minutes | 1.20 + 0.04/min<br>$1.80/15 minutes | 1.20 + 0.04/min<br>$1.80/15 minutes | 
  
    
      | 2009 | 1.20 + 0.04/min<br>$1.80/15 minutes | 1.02 + 0.04/min<br>$1.62/15 minutes | 1.20 + 0.04/min<br>$1.80/15 minutes | 
  
  
    | Year | Collect | Prepaid | Debit | 
  
    
      | 2018 | 0.14/min<br>$2.10/15 minutes | 0.14/min<br>$2.10/15 minutes | 0.04/min<br>$0.60/15 minutes | 
  
    
      | 2017 | 0.14/min<br>$2.10/15 minutes | 0.14/min<br>$2.10/15 minutes | 0.04/min<br>$0.60/15 minutes | 
  
    
      | 2016 | 0.14/min<br>$2.10/15 minutes | 0.14/min<br>$2.10/15 minutes | 0.04/min<br>$0.60/15 minutes | 
  
    
      | 2015 | 0.04/min<br>$0.60/15 minutes | 0.04/min<br>$0.60/15 minutes | N/A | 
  
    
      | 2014 | 0.04/min<br>$0.60/15 minutes | 0.04/min<br>$0.60/15 minutes | N/A | 
  
    
      | 2013 | 0.04/min<br>$0.60/15 minutes | 0.04/min<br>$0.60/15 minutes | 0.04/min<br>$0.60/15 minutes | 
  
    
      | 2012 | 0.04/min<br>$0.60/15 minutes | 0.04/min<br>$0.60/15 minutes | N/A | 
  
    
      | 2011 | 0.50 flat | 0.50 flat | 0.50 flat | 
  
    
      | 2010 | 0.50 flat | 0.50 flat | 0.50 flat | 
  
    
      | 2009 | 0.50 flat<br>$0.50/15 minutes | 0.50 flat<br>$0.50/15 minutes | 0.50 flat<br>$0.50/15 minutes |