-- Database schema
| Question : questiontext [ TEXT ] , questionid [ INTEGER ] primary_key | Survey : SurveyID [ INTEGER ] primary_key , Description [ TEXT ] | Answer : AnswerText [ TEXT ] , SurveyID [ INTEGER ] , UserID [ INTEGER ] , QuestionID [ INTEGER ] |
-- -- Tell the number of surveys that contained the question “What country do you work in?”.

SELECT COUNT(DISTINCT T1.QuestionID) FROM Answer AS T1 INNER JOIN Question AS T2 ON T1.QuestionID = T2.questionid INNER JOIN Survey AS T3 ON T1.SurveyID = T3.SurveyID WHERE T2.questiontext = 'What country do you work in?';