mysql按月获取一年内每个月的数据量

SELECT
    COUNT(id) AS num,
    DATE_FORMAT(create_time, '%Y-%m') AS createTime
FROM
    table
WHERE
    create_time >= '2016-01-01 00:00:00'
        AND create_time < '2017-01-01 00:00:00'
## 如果已经确定了时间没必要group by year 再group by month了
## GROUP BY DATE_FORMAT(create_time, '%Y') , DATE_FORMAT(create_time, '%Y%m')

GROUP BY DATE_FORMAT(create_time, '%Y%m')

ORDER BY createTime

结果类似如下

'7668', '2016-06'
'15753', '2016-07'
'15873', '2016-08'
'15360', '2016-09'
'15916', '2016-10'
'15217', '2016-11'

但是全无效率的样子 , 知道直接取出来放在程序里分类算加法会不会好点.