In 1994, Cuba exported $110 million worth of medical supplies. In 1995, this figure rose to $125 million.

Cuban biotechnology researchers have been granted more than 100 patents, include 26 in the United States. In October 1999 SmithKline Beecham, announced details of an agreement to test and market a Cuban meningitis vaccine, first in Europe and eventually in the U.S. Cuban biotechnology research is responsible for drugs such as recombinant streptokinase, a "clot-buster" for heart attack victims produced at a fraction of the cost of similar medicines in developed countries.

Bhutan is known for shunning conventional development and going its own way. The first foreign tourists didn’t come to the country until 1974, and the government allows only 9,000 to enter per year, each of whom pay fees of $200 per day. Television and the Internet arrived only in 1999. Most recently, the Government of Bhutan made it illegal to sell tobacco or smoke in public, becoming the first officially non-smoking nation.

Unemployment rates can be found in the Labor category. These can be compared with Social security expenditure in the economy category.

Willingness to report crime and confidence in the police and legal system influence the rate of reported crime. Over half of U.S citizens feel that they can report crime to the police, and 73% have confidence in the police and the legal system. In addition to this, the United States has the highest ranking for belief in police efficiency with 89% of respondents stating that the police do a good job in controlling crime in their area.

Emissions from the burning of fossil fuels contribute to acid rain, global warming and poor air quality. In turn, these are responsible for environmental damage and human health problems including aggravation of asthma, emphysema, bronchitis and existing heart disease and reducing the immune system response to inhaled micro organisms.

As a result of these concerns in December 1997 the Kyoto Protocol, which set limits for the emission of greenhouse gases was negotiated. In February 2005, 141 countries including the People's Republic of China had ratified the agreement. The United States has not ratified the protocol due to concern over some details, in particular that most provisions of the Kyoto protocol apply only to developed countries.

The cost of filling the tank depends on the fuel tank capacity and the cost of gasoline. Fuel tank capacities vary with different makes and models of vehicle, but 20 gallons (75 L) is standard for many SUV models.

As the data above indicates, pump prices vary considerably around the world. To calculate the price in your country, multiply the value given above by 75 (fuel tank capacity).

eg. If you are in the U.S, a full tank will cost 75 * 0.77 = $US 57.75

In 1963, the Zimbabwe African National Union (ZANU) formed, with Robert Mugabe as secretary; a year later, it was declared illegal and Mugabe was imprisoned. Following his release from prison in 1974, Mugabe helped form the Patriotic Front to fight Ian Smith’s regime in a civil war.

Mugabe became prime minister in 1980 when Zimbabwe gained independence from Britain. In 1987, Mugabe combined the posts of head of state and prime minister as executive president. He won elections in 1996, 2000, and in 2002. The 2002 campaign featured alleged ballot rigging and intimidation of opponents of the ruling ZANUPF regime. Zimbabwe withdrew from the Commonwealth in 2003.