select time_by_day.the_year as c0, count(distinct sales_fact_1997.customer_id) as m0 from time_by_day as time_by_day, sales_fact_1997 as sales_fact_1997, store as store where sales_fact_1997.time_id = time_by_day.time_id and time_by_day.the_year = 1997 and sales_fact_1997.store_id = store.store_id and (store.store_state in ('CA', 'OR') or store.store_country in ('Mexico', 'Canada')) group by time_by_day.the_year;