Model Summary
S	R-square	R-Square (adjusted)		R-Square (def)
3.68573	91.17%	90.74%		89.43%
Analysis of variance
Source	GL	SC	MC	Value F	Value P
Regression	2	5748.4	2874.22	211.58	0.000
Date	1	126.6	126.59	9.32	0.004
Open	1	1744.1	1744.13	128.39	0.000
Error	41	557.0	13.58