public void Add(IContextStatistics stats)
        {
            NumRepositories                      += stats.NumRepositories;
            NumUsers                             += stats.NumUsers;
            NumSolutions                         += stats.NumSolutions;
            EstimatedLinesOfCode                 += stats.EstimatedLinesOfCode;
            NumTypeDeclTopLevel                  += stats.NumTypeDeclTopLevel;
            NumTypeDeclNested                    += stats.NumTypeDeclNested;
            NumPartial                           += stats.NumPartial;
            NumClasses                           += stats.NumClasses;
            NumInterfaces                        += stats.NumInterfaces;
            NumDelegates                         += stats.NumDelegates;
            NumStructs                           += stats.NumStructs;
            NumEnums                             += stats.NumEnums;
            NumUnusualType                       += stats.NumUnusualType;
            NumTypeDeclExtendsOrImplements       += stats.NumTypeDeclExtendsOrImplements;
            NumMethodDeclsTotal                  += stats.NumMethodDeclsTotal;
            NumMethodDeclsOverrideOrImplement    += stats.NumMethodDeclsOverrideOrImplement;
            NumMethodDeclsOverrideOrImplementAsm += stats.NumMethodDeclsOverrideOrImplementAsm;
            NumValidInvocations                  += stats.NumValidInvocations;
            NumUnknownInvocations                += stats.NumUnknownInvocations;
            NumAsmCalls                          += stats.NumAsmCalls;
            NumAsmDelegateCalls                  += stats.NumAsmDelegateCalls;
            NumAsmFieldRead                      += stats.NumAsmFieldRead;
            NumAsmPropertyRead                   += stats.NumAsmPropertyRead;

            UniqueTypeDecl.AddAll(stats.UniqueTypeDecl);
            UniqueMethodDeclsOverrideOrImplementAsm.AddAll(stats.UniqueMethodDeclsOverrideOrImplementAsm);
            UniqueAssemblies.AddAll(stats.UniqueAssemblies);
            UniqueAsmMethods.AddAll(stats.UniqueAsmMethods);
            UniqueAsmFields.AddAll(stats.UniqueAsmFields);
            UniqueAsmProperties.AddAll(stats.UniqueAsmProperties);
        }