How the world's major stock markets have performed in this difficult month

With the U.S. and global markets having their worst week in years, here is a breakdown on how bad the damage has been:

U.S. Markets:

The Dow Jones industrial average: down 7 percent in August, and 7.7 percent in 2015.

The Standard & Poor's 500 index: down 6.3 percent this month, and 4.3 percent this year.

The Nasdaq composite: down 8.2 percent this month, and 0.6 percent this year.

Europe:

Germany's DAX: down 10.5 percent in August, but up 3.3 percent in 2015.

France's CAC-40: down 8.9 percent this month, but up 8.4 percent this year.

U.K.'s FTSE 100: down 7.6 percent this month, down 6 percent this year.

Asia:

Japan's Nikkei index: down 5.6 percent in August, up 11.4 percent in 2015.

Hong Kong's Hang Seng: down 9 percent this month, and down 5.1 percent this year.

China's Shanghai Composite: down 4.3 percent this month, and up 8.4 percent this year.