Statistical error	Expectation value	Operator
0.01	51.152	T
0.01	−59.521	V
0.01	−8.369	T + V
0.001	1.57	Proton $〈 r_{i}^{2} 〉$
0.001	1.64	neutron $〈 r_{i}^{2} 〉$