Table 2: Cross correlation between our results of the solar radii and solar activity indicators. From left to right: solar radius at 17 GHz, total solar irradiance, Wolf number and flux density daily means at 10.7 cm (S-component).

	17 GHz	Irr.	Wolf N.	10.7 cm
He II	+0.14	+0.20	+0.30	-0.12
Fe IX,X	-0.12	-0.38	-0.43	-0.40