Table:
text: Secretary of State for Canada
Secretaries of State for Canada
Secretaries of State for Canada
_ Secretary_of_State Prime_Minister Tenure_
1. Hector Louis Langevin Macdonald July 1, 1867 – December 7, 1869
2. James Cox Aikins Macdonald December 8, 1867 – November 5, 1873
3. David Christie Mackenzie November 7, 1873 – January 8, 1874
4. Richard William Scott Mackenzie January 9, 1874 – October 8, 1878
5. James Cox Aikins Macdonald October 19, 1878 – November 7, 1880
6. John O`Connor Macdonald November 8, 1880 – May 19, 1881
7. Joseph-Alfred Mousseau Macdonald May 20, 1881 – July 28, 1882
8. Joseph Adolphe Chapleau Macdonald July 29, 1882 – June 6, 1891

Question: How many of the Secretaries of State for Canada were under Prime Minister Macdonald?