On July 14, 2007, the Sunspot number was 38. This was late in Solar Cycle 23.

You can see the daily sunspot number and interesting astronomical phenomena at spaceweather.com.

11 years

You shouldn't be posting your homework questions on WikiAnswers; especially not when the question does not include the relevant information.

You can see the daily sunspot numbers on http://www.spaceweather.com.

http://en.wikipedia.org/wiki/Sunspot_cycle The definition for sunspot cycle is "the recurring increase and decrease in the number of sunspots over a period averaging about eleven years."

Sunspots are a cyclical phenomena. The lowest would be zero.