[Why] This registrar sells 5.99 for 1 year and $70+ the second?

[kohkindachi]

I'm referring to this domain seller http://www.101domain.com/at.htm


1 Year Registration$ 5.99
2 Years Registration$ 76.44
5 Years Registration$ 185.25
10 Years Registration$ 351.00

I don't understand Does it really means that I've to pay $76 the following year?

kohkindachi Reviewed by kohkindachi on 18th Sep 2010. [Why] This registrar sells 5.99 for 1 year and $70+ the second? I'm referring to this domain seller http://www.101domain.com/at.htm http://www.101domain.com/includes/page_content/single_ext/images_templ/singlepage_search_box_price_req.jpg http://www.101domain.com/includes/page_content/single_ext/images_templ/singlepage_search_box_content_bg.jpg 1 Year Registration$ 5.99 2 Years Registration$ 76.44 5 Years Rating: 5