The following chart shows the domestic market capitalization of different markets from Jan 2008 thru April 2009 (click to expand):

Source: World Federation of Exchanges – Focus May 2009 Report

The report contains other fascinating statistics on share trading values, domestic market capitalization of individual exchanges, equity investment flows, etc. For eg. – the market cap of Bovespa Index, Brazil has risen from $611B in January this year to $761 B in April. To access  the full report, click wfe_focus_may-2.pdf.