<|begin_of_text|><|start_header_id|>system<|end_header_id|>

You are an expert at identifying data availability statements in scientific text. A data availability statement describes where research data can be found or how it can be accessed.<|eot_id|><|start_header_id|>user<|end_header_id|>

Determine if the following text contains a data availability statement. Answer with 'yes' or 'no'.

Text: all data described in this paper are available for public use through the website http://www.cdc.gov/nchs/nhanes/nhanes_questionnaires.htm. this page gives the data for each 2-year cycle since 1999-2000 (e.g., http://wwwn.cdc.gov/nchs/nhanes/search/nhanes99_00.aspx); the 1988-1994 data is available at http://www.cdc.gov/nchs/nhanes/nh3data.htm. investigators should consult http://www.cdc.gov/nchs/tutorials/nhanes/index_continuous.htm for information on analyses.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>