nursery, and with 800 cows, the Katif dairy was the second largest in the country. Telesales and printing were other notable industries. The sum of exports from the greenhouses of Gush Katif, which were owned by 200 farmers, came to $200,000,000 per year and made up 15% of the agricultural exports of the State of Israel. The combined assets in Gush Katif were estimated at $23 billion. Of Israel's total exports abroad, Gush Katif exported: 95% of bug-free lettuce and greens 70% of organic vegetables 60% of cherry tomatoes 60% of geraniums to Europe. The Economic Cooperation Foundation, which is funded by the European Union, agreed to purchase the greenhouses for $14 million and transfer ownership to the Palestinian Authority, so that the 4,000 Palestinians employed to work in them could keep their jobs. The money was paid for the greenhouse guts, such as the computerized irrigation systems, as the law in Israel only allowed for the government to pay for the land and structures, as these are not moveable. Israel compensated the evacuees 55 million dollars for the greenhouses and the land. Former head of the World Bank, James Wolfensohn, contributed $500,000 of his own money to the project. The rest was contributed by a group of prominent Jewish philanthropists, including Mortimer Zuckerman, Lester Crown and Leonard Stern. They bought the irrigation systems and other moveables, because, according to Zuckerman, "Without those, the Palestinians would not be able to make a go of running the greenhouses." When the IDF left Gaza, half of Gaza's greenhouses were dismantled by their owners before leaving. The owners despaired at the time of receiving compensation, so they removed what they could. Afterwards Palestinians looted the area, and 800 of the 4,000 greenhouses were left unusable, while, according to Wolfensohn, most were left intact. Subsequently, the harvest, intended for export via Israel for Europe, was essentially lost due to the Israeli restrictions on the Karni crossing which "was closed more than not", leading to losses in excess of $120,000 per day. Economic consultants estimated that the closures cost the whole agricultural sector in Gaza $450,000 a day in lost revenue. Israel closed the crossing due to security concerns. Palestinian attacks Although the Gush Katif settlements and the roads leading to it were guarded by the Israeli Army's Gaza Division, settlers were still vulnerable to attacks. During the First Intifada (1987–1990), which broke out in