SDSS Observing Performance Statistics
	updated 08/05/08
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	Fraction of time spent imaging
	Fraction of time doing spectroscopy
	Imaging efficiency
	Median spectroscopic efficiency
	Operations efficiency (dark time)
	Operations efficiency (dark + gray time)
	System Uptime (dark time)
	System Uptime (dark + gray time)
	Weather suitable for observing (dark time)
	Weather suitable for observing (dark + gray time)