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PDF: 4209 KB - Bureau of Infrastructure, Transport and Regional ...

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BITRE | Australian transport statistics yearbook 2009<br />

Tables 11.3<br />

Annual world crude oil prices are presented as the average <strong>of</strong> quarterly prices<br />

compiled by ABARE from posted or <strong>of</strong>ficial selling prices with Rotterdam spot prices<br />

for Middle East <strong>and</strong> North Sea crudes.<br />

3. Middle East crude, 32 American Petroleum Institute (API) gravity.<br />

4. North Sea crude, 38 API gravity.<br />

5. North American crude, 40 API gravity.<br />

6. Australian crude, 42 API gravity.<br />

7. Malaysia tapis blend, 44 API gravity.<br />

API gravity is an international st<strong>and</strong>ard measure <strong>of</strong> crude oil density, with higher API<br />

gravities signifying lighter oils. Light crude oil has an API gravity higher than 30.<br />

Tables 11.4<br />

Annual average retail petrol prices are calculated as a simple average <strong>of</strong> quarterly prices<br />

for unleaded petrol collected by the ABS as part <strong>of</strong> CPI compilation processes.<br />

Tables 11.5–11.9<br />

Emission estimates that are provided in terms <strong>of</strong> carbon dioxide equivalent emissions<br />

in Tables 11.5 <strong>and</strong> 11.6 include directly radiative gases only (carbon dioxide, methane<br />

<strong>and</strong> nitrous oxide). The estimates <strong>of</strong> carbon dioxide equivalent emissions do not<br />

include the indirect effects <strong>of</strong> gases such as carbon monoxide, nitrogen oxides <strong>and</strong><br />

non-methane volatile organic compounds. Emission estimates are available in Tables<br />

11.7 to 11.9 for carbon dioxide, methane <strong>and</strong> nitrous oxide without conversion to<br />

carbon dioxide equivalent.<br />

Estimates for maritime <strong>and</strong> aviation emissions only include domestic transport<br />

(coastal shipping <strong>and</strong> domestic aviation).<br />

A discussion <strong>of</strong> the modelling techniques used is available in Greenhouse gas<br />

emissions from Australian transport (BTRE 2006c).<br />

The Australian transport statistics booklet<br />

The Australian transport statistics booklet is a small, pocket-size publication that<br />

presents a statistical picture <strong>of</strong> current Australian transport activity. The Yearbook<br />

complements it by presenting time series for a range <strong>of</strong> key transport activity<br />

measures, including many that are included in the booklet. The development <strong>of</strong> a<br />

transport statistics framework <strong>and</strong> a focus on longer time series required the use <strong>of</strong><br />

different data sources to the booklet for a small number <strong>of</strong> tables. In addition, some<br />

estimates have been updated since the booklet was published.<br />

176

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