LONDON (Reuters) - There will be at least five weeks between each step to ease lockdown measures in England, the government said on Monday as it set out key dates to reopen schools, shops, restaurants and other parts of the economy. “It takes around four weeks for the data to show the impact of easing restrictions and the government will provide a further week’s notice to the public and businesses ahead of any further changes,” it said in its roadmap document. “For that reason, there will be at least five weeks between the steps in the roadmap.”