A card to pay tributes is seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

A bottle of milk to pay tributes are seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

Floral tributes and a card are seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

A bottle of milk to pay tributes is seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

A bottle of milk to pay tributes are seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

A girl presents floral tributes outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

Floral tributes and a book are seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

A girl presents floral tributes outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

Floral tributes and a book are seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

A bottle of milk to pay tributes is seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

A man lays flowers outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

Floral tributes and a card are seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

A bottle of milk to pay tributes are seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

Floral tributes and a book are seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

A man lays flowers outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)