CREATE TABLE Sales (sales_transaction_id INT, sales_details VARCHAR)
CREATE TABLE Purchases (purchase_transaction_id INT, purchase_details VARCHAR)
CREATE TABLE Transactions (transaction_id INT, investor_id INT, transaction_type_code VARCHAR, date_of_transaction DATETIME, amount_of_transaction DECIMAL, share_count VARCHAR, other_details VARCHAR)
CREATE TABLE Lots (lot_id INT, investor_id INT, lot_details VARCHAR)
CREATE TABLE Investors (investor_id INT, Investor_details VARCHAR)
CREATE TABLE Transactions_Lots (transaction_id INT, lot_id INT)
CREATE TABLE Ref_Transaction_Types (transaction_type_code VARCHAR, transaction_type_description VARCHAR)

Bin all date of transactions into the YEAR interval, and sum the share count of each bin. Return the result using a line chart.
SELECT date_of_transaction, SUM(share_count) FROM Transactions
SELECT "date_of_transaction", SUM("share_count") FROM "Transactions"