Palestinian youth hurl stones towards Israeli soldiers at the Qalandia checkpoint, in the Israeli occupied West Bank, on November 19, 2012

Members of the militant group Islamic Jihad patrol the border with Israel to prevent incursions by the Israel Defense Forces. The average Gazan family has six people, and with so few jobs to be had, disaffected young men are drawn to extremist groups.

A worker emerges from one of hundreds of smuggling tunnels that connect the Gaza Strip and Egypt.

Palestinian Yoused Abu Khoussa carries the body of his one and a half year-old son Iyad, during his funeral in Bureij Refugee Camp, central Gaza Strip, Sunday, Nov. 18, 2012

A Palestinian youth stands next to the controversial Israeli separation barrier during clashes with Israeli forces at the Qalandia checkpoint, in the Israeli occupied West Bank, on November 19, 2012.

Palestinian students from Birzeit University burn tires during clashes with Israeli soldiers, for the second consecutive day, as they protest against the ongoing Israeli offensive on the Gaza Strip in the West Bank town of Betunia on November 18, 2012

Smoke rises during an explosion from an Israeli strike in Gaza City, as the Hamas-ruled Strip was bombarded with nearly 200 airstrikes early on Saturday

Meanwhile, Israeli soldiers stand guard by the Iron Dome defence system's new launch site in Tel Aviv. For the third day in a row, rockets from Gaza cruised towards the biggest metropolitan region in Israel.

A Palestinian searches for victims under the rubble of the destroyed house of a Hamas official ,after an air strike in Jabaliya refugee camp of the northern Gaza Strip.

Israeli children wave their national flag as they greet an army convoy passing on a road leading to the Israel-Gaza border near the southern Israeli town of Ofakim.

Israeli border policemen detain a Palestinian stone-thrower during clashes against Israel's military operation in the Gaza Strip, at Hawara checkpoint near the West Bank city of Nablus

Gaza: Age of Population as of 2012•0-14 years: 43.8%

(male 384,494/female 363,818)

•15-24 years: 21.1% (male 185,250/female 176,385)

•25-54 years: 29.2% (male 256,533/female 243,336)

•55-64 years: 3.3% (male 27,745/female 28,461)

•65 years and over: 2.6% (male 17,939/female 26,296)

• http://www.aljazeera.com/indepth/interactive/2012/11/2012111517327712311.html