结构推理 已知某年某地区6-12月扩散指数包含的6个景气指标值如下表所示： 123456权数w 11.84109510.911.6212.0412.430.2 1.561.561.681.611.731.920.3 9.168.418.418.767.2680.1 1.121.151.131.241.181.170.1 18.0113.0112.4112.9812.0211.830.2 99.796.594.293.896.898.20.1 要求：根据上表资料，计算1个月的扩散指数，并绘制扩散指数序列曲线图。