def compress_data_to_excel(self, data):
        minimum = min(i.get('year') for i in data)
        maximum = max(i.get('year') for i in data)
        year_range = maximum - minimum + 1
        datasets = {minimum + x: [] for x in range(int(minimum), int(maximum + 1))}
        all_years = [minimum + x for x in range(0, int(year_range))]

        copy = data[:]
        for row in data:
            y = all_years[:]
            for inner in copy:
                if row.get('project_id') == inner.get('project_id'):
                    year = inner.get('year')
                    y.remove(year)
                    datasets[year].append(self._build_dataset_blocks(year, inner.get('months')))
                else:
                    for year in y:
                        datasets[year].append(self._build_dataset_blocks(year, {}))

        print(datasets)
        return data