Returns the latest variable names
    :param run_table_name: str, required run table name
    :return: dict -> {<int_keys>: <variable_name>}

def get_figure_stats(run_table_name):
    """
    Returns the latest variable names
    :param run_table_name: str, required run table name
    :return: dict -> {<int_keys>: <variable_name>}
    """
    conn, c = open_data_base_connection()

    # Get latest project
    c.execute("""SELECT variable_name FROM {}""".format(run_table_name))
    variable_names = convert_list_to_dict(np.array(c.fetchall()).squeeze(axis=1))
    conn.close()

    return variable_names