((1 . total_area) 
(2 . land_area) 
(3 . total_borders) 
(4 . arable_land)
(5 . population) 
(6 . population_growth_rate) 
(7 . birth_rate) 
(8 . death_rate)
(9 . net_migration_rate) 
(10 . infant_mortality_rate)
(11 . life_expectancy_at_birth_total) 
(12 . literacy_total_population)
(13 . total_fertility_rate) 
(14 . total_labor_force) 
(15 . national_product)
(16 . national_product_real_growth_rate) 
(17 . national_product_per_capita)
(18 . unemployment_rate) 
(19 . budget_expenditures) 
(20 . exports_total)
(21 . imports_total) 
(22 . external_debt) 
(23 . electricity_capacity)
(24 . electricity_production) 
(25 . electricity_consumption_per_capita)
(26 . highways_total) 
(27 . airports_total) 
(28 . television_broadcast_stations)
(29 . defense_expenditures_number))