It is always interesting to see the global demand for gold and the different sectors that are buying or selling. The report below (PDF link) outlines what Q1 2017 saw and draw comparisons between last year Q1, which set a couple records.
What I pay the closest attention to is the demand and inflows to ETFs and central bank buying. These are by far the largest drivers of metals prices due to their size. Paying attention to coin and bar demand as well as jewellery demand is interesting but do not let that over-influence your overall assessment of the sector. A final area to pay attention to from a company investment standpoint is overall production. This is not something where the trend changes quickly so take note of overall production (at the bottom of the report) and figure out the companies that still have profitable projects – especially at current prices.