How much am i worth?

Hey all, im currently applying for jobs and was wondering what a reasonable salary expectation should be for someone like my self. I recently graduated and have now got 1years experience in graphic design and web design. I have made a few website over the past year.Obviously I know prices will differ from place to place but i was just wondering how much a junior designer should expect? i keep getting asked at interviews and I dont reallyknow and I would hate to sound a fool with too high or low expectations.

Two sites i have made this year:
www.lincolnshirebikenights.com
www.fault151.com