diff --git a/include/Kyoto/TAverage.hpp b/include/Kyoto/TAverage.hpp
new file mode 100644
index 00000000..71f92258
--- /dev/null
+++ b/include/Kyoto/TAverage.hpp
@@ -0,0 +1,29 @@
+#ifndef _TAVERAGE_HPP
+#define _TAVERAGE_HPP
+
+#include "types.h"
+
+#include "rstl/optional_object.hpp"
+#include "rstl/vector.hpp"
+
+template < typename T >
+class TAverage : rstl::vector< T > {
+public:
+  TAverage() {}
+  TAverage(int capacity, const T& value);
+  void AddValue(const T& value) {
+    push_back(value);
+    for (int i = size() - 1; i > 0; --i) {
+      operator[](i) = operator[](i - 1);
+    }
+    operator[](0) = value;
+  }
+  rstl::optional_object< T > GetAverage() const;
+};
+
+template < typename T >
+TAverage< T >::TAverage(int capacity, const T& value) {
+  resize(capacity, value);
+}
+
+#endif