Find out storage space allocation for site through code

SPSite oSite = new SPSite("http://mpacificomoss/");

                        Console.WriteLine("SITE URL:" +oSite.Url);
                        DataTable oDtRawData = null;

                        // this line of code will return the stroage information of all the document lirbaries in this site
                        oDtRawData = oSite.StorageManagementInformation(SPSite.StorageManagementInformationType.DocumentLibrary
, SPSite.StorageManagementSortOrder.Increasing, SPSite.StorageManagementSortedOn.Size, 100);

                        // this line of code will return the stroage information of all the lists in this site
                        oDtRawData = oSite.StorageManagementInformation(SPSite.StorageManagementInformationType.List
, SPSite.StorageManagementSortOrder.Increasing, SPSite.StorageManagementSortedOn.Size, 100);

                        // this line of code will return the stroage information of all the Documents in this site
                        oDtRawData = oSite.StorageManagementInformation(SPSite.StorageManagementInformationType.Document
, SPSite.StorageManagementSortOrder.Increasing, SPSite.StorageManagementSortedOn.Size, 10000);

                        // if you wan to see column names, loop through all the columns and find out the names and grab the needed one. 

                        foreach (DataColumn oColumn in oDtRawData.Columns)
                        {
                            Console.WriteLine(oColumn.ColumnName);

                        }

                        

                        // loop through all the rows and find out the values. Here the size will be return in bytes (size/1024 = size in KBs)

                        foreach (DataRow oRow in oDtRawData.Rows)
                        {

                            Console.WriteLine(oRow["TotalSize"].ToString() + " : " + oRow["Size"].ToString() +
 " : " + oRow["SizeOfVersions"].ToString() + " : " + oRow["LeafName"].ToString());

                        }