Proof this year's winter is milder than last. Salt used on roads in Surrey by 11th Dec this year: 950 tonnes. In 2012 it was 3,100 tonnes.
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George Michael died in December last year at the age of 53.
PC Keith Palmer, 48, stabbed by Khalid Masood while on duty in the grounds of the Palace of Westminster last Wednesday.
Those gathered on the bridge fell silent at 2.40pm - the time the first call was made to police exactly seven days ago.