Table A1.6: Comparison of case study countries and other countries in years they are included in the TIP Report.

Statistic	Case study countries	Other countries	Difference	Significant difference at p = 0.05
Tier	2.24	2.02	0.219	Yes
Count of NGOs	3.3	2.88	0.413	No
Count of IGOs	1.02	0.802	0.213	No
TIP media coverage	113	89.5	23.1	Yes
Incidence (transit)	0.933	1.5	-0.563	No
Incidence (origin)	2.2	2.4	-0.195	No
Incidence (destination)	2.4	2.27	0.129	No
GDP per capita (constant 2000 dollars)	8,677	6,973	1,704	No
Population	48,262,147	44,641,523	3,620,624	No
Corruption	2.13	2.62	-0.485	Yes
Political rights	3.98	3.44	0.542	Yes
Aid (OECD)	14.5	230	-215	No
Aid (US)	121	96	24.8	No
Aid (US) per capita	0.0000105	0.00000749	0.00000301	No
Ratification of 2000 TIP protocol	0.8	0.791	0.00915	No
US TIP effort (proportion of Wikileaks cables mentioning TIP)	0.063	0.0402	0.0228	Yes