Interviewer instructions
    
                                    To the interviewer: Give the respondent Showcard 11 and read the following instructions:  This is a graph showing the population of Bulgaria according to official censuses conducted between the  1900s and today. Examine the graph carefully. I will ask you some questions about it.  After the respondent finishes getting familiar with the graph, read aloud the questions and answer choices, and record the selected answer.