  | 
                        1 | 
                        Low (The indigenous language remained the sole or primary means of communication for most of the indigenous population for the duration of the post-contact period.) | 
                        27 | 
                    
                    
                          | 
                        2 | 
                        Medium (The indigenous language remained an important means of communication for the duration of the post-contact period, but at one time or another the indigenous population used a non-indigenous language to roughly the same extent.) | 
                        54 | 
                    
                    
                          | 
                        3 | 
                        High (At one time or another during the post-contact period, a foreign language became the sole or primary means of communication for most of the indigenous population.) | 
                        15 |