Just came back from country #101. Have spent at least one night in each country, with the exception of Myanmar (daytrip across the border from Thailand) and Vatican city.
19 new countries for 2016:
Armenia
Azerbaijan
Brunei
Bulgaria
Canada
Eritrea
Georgia
Guinea
Guinea-Bissau
Iceland
Ireland
Lesotho
Liberia
Malaysia
Maldives
Romania
Sierra Leone
Swaziland
Syria
2017 will hopefully include Central and South America.