现有数值如下:-112,66,-75,-79,-63,-49,-80,37,72,-178,-104,137,-155,-87,-38,-44,128,-211,152,8,-82,-180,4,67,46,70,83,-68,51,72,-7,43,67,21,-48,154,-81,-144,-215,36,-154,16,-22,-49,21,-135,-35,-28,169,61,-46,14,130,-139,78,-9,-67,-124,210,-222,-15,130,143,-101,67,49,-9,-28,-12,-129,92,-87,165,35,46,137,90,74,-67,28,-26,-39,-86,-28,-111,-174,175,-19,-66,-80,-110,114,-14,36,-110,-186,14,-141,328,-77将其转为20行5列的矩阵,对其每行内容求和,筛选出求和列中大于等于50%分位的所有行,则这些行中所有数值的总和是多少?计算过程中所有数据位浮点数,保持2位小数!