2007-2009 Bear market (01-01-2007 until 03-31-2009）
2. 2009-2020 Bull Market (03-31-2009 until 01-31-2020）
3. Covid19 Crisis (02-01-2020 until 03-31-2020)
More descriptions please see attached picture. Also, all needed data are uploaded for you, please see attached.
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