But Downing Street said the Government's Central Office of Information had put in place plans to cut Whitehall's carbon footprint and use fewer plastic bags.

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And this suggests that, although these statistics are collated by forces under instruction from the Home Office and then submitted to central government, they have to be treated as somewhat unreliable.

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In April, tourism was still down 35% in comparison to last year, reported the Central Agency for Public Mobilisation and Statistics, a government office that collects statistical data on the country.

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