Food, medicine, fuel, parts for water and sanitation systems, fertiliser, plastic sheeting, phones, paper, glue, shoes and even teacups are no longer getting through in sufficient quantities or at all. According to Oxfam only 137 trucks of food were allowed into Gaza in November. This means that an average of 4.6 trucks per day entered the strip compared to an average of 123 in October this year and 564 in December 2005.

That comes from a page by the San Francisco Gray Panthers - Effects of Israeli blockade of Gaza

And note, those figures relate to a period during which the earlier ceasefire was still supposed to be in operation - a ceasefire largely based on a promise by Israel not to impose a blockade on essential supplies.