A 55-year-old man is seen by his family physician for follow-up of elevated office blood pressure readings. His cardiovascular risk factors include dyslipidaemia and a 20-pack-year smoking history. You ask him to measure his blood pressure at home twice in the morning and twice in the evening for 7 days using a validated automated device, and to discard the first day of readings. According to current Hypertension Canada guidance, which mean home blood pressure value would confirm a diagnosis of hypertension?