(Reuters) - Boeing's new Chief Executive Officer David Calhoun started work on Monday, inheriting a company that is reeling from the effects of two fatal crashes which led to the grounding of the 737 MAX last March.The Chicago-based firm is struggling for traction with financial investors and has ordered a full-scale halt in production of the 737 MAX that has already cost billions of dollars.Following are charts on a year of crisis for the company as it prepares on Tuesday to publish figures for..