现有数值如下:8,95,49,83,-11,-28,193,-8,-50,-56,-34,-65,81,65,9,112,-168,49,73,-46,-46,-179,-87,130,34,82,100,32,267,113,-121,36,91,208,-6,252,-68,157,62,-150,-38,-122,-15,52,107,68,-80,200,-5,-141,-186,-1,60,37,-27,18,145,-48,15,65,-170,-32,-21,-140,142,75,-78,131,4,79,24,-52,24,23,-53,-100,21,14,101,-7,-103,40,-1,113,-111,-206,-118,-197,43,49,86,8,9,124,68,48,80,-141,43,-99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!