객체
UsageDay
필드
daystring (date)필수active_usersinteger필수searchesinteger필수searches_no_clickinteger필수questionsinteger필수not_answeredinteger필수viewsinteger필수copiesinteger필수
객체
daystring (date)필수active_usersinteger필수searchesinteger필수searches_no_clickinteger필수questionsinteger필수not_answeredinteger필수viewsinteger필수copiesinteger필수