Thank you for your reply. Then, I have two further questions on this: 1. Why this ''imports-from-a country itself'' only happens after around 2001? You may check the data, there is no such problem for early years. 2. I've noticed that your export data acturally includes ''re-exports'' as well, why there is no such problem for exports at all? ...

Hi, anyone could explain the following dataset drawn from UNcomtrade?  Is there anything wrong with the database?   Period Trade Flow Reporter Partner Code Trade Value NetWeight (kg) Quantity Unit Trade Quantity Flag 2002 Import Thailand Thailand TOTAL $950,559,887 ...

Data Reference: Ghana 2007 was received on 28 August 2008; published on 29 September 2008 Revised data (received on 11 March 2009) has been published on 7 April 2009. Problems mentioned above have been solved. 

Data Reference: South Africa 2007 received on 19 February 2008; published on 31 October 2008 Original South African data of commodity code ''080910'' was checked and yes it's big as mentioned. We have asked for further clarification to the data provider. When the revised data is available, it will be processed soon.

A Trade Map user has pointed out that South Africa's export quantities for apricot (HS 080910) looks too big in 2007 and he is right. This outlier quantity has also been taken into account in theaggregates at 4 and 2-digit level. I have checked the COMTRADE data and I have found the same quantities.

Data Reference: Ghana 2007 was received on 28 August 2008; published on 29 September 2008 Analysis from original Ghana 2007 data showed unusual high trade values for some commodities. We were able to pin point the problem into 4 records: Code Description Export Value in Local Currency 1106201030    ...

I also would like to draw your attention about Ghana exports 2007 reportedin Comtrade. The product codes 15, 20, 19 and 11 are in the top six sectorsexported by Ghana in 2007 and the annual growth rate for these sectors isabove 1000 %. The growth of these sectors is not reflected when we checkmirror data.

Data Reference: Malaysia 2007 was received on 31 March 2008; published on 8 April 2008 Following your question about iron/non-alloy steel. We got the reply from Malaysian Department of Statistics. (see email below / attachment).   The data provided to us was provisional and it seems there is a mistake in the quantity of iron/non-alloy ...

I have however, spotted some odd data in the category:  List of importing markets from Organisation for Economic Co-operationand Development (OECD) for a product exported by Malaysia Product : 721720 Wire of iron or non-alloy steel, zinc plated/coated''. That shows unit values varying from USD$4.40 and US$59 per tonne,whereas the world and ...

Data Reference: Philippines 2007 was received on 3 September 2008; published on 25 September 2008Yes, we are aware of this specific problem. In fact, during data processing, we had contacted Philippines NSO for clarification. Here was the reply: >For the 2007 data, the Philippine adopted a new coding system which is the>2004 PSCC. This ...