<|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: the authors confirm that, for approved reasons, some access restrictions apply to the data underlying the findings. data are available from statistik austria. for this study a secondary data analysis was performed, because high-quality nationwide and comparable health data for such a long study period were only available from statistik austria. statistik austria (http://www.statistik.at/web_en/) is the owner of the data and makes them available. the microcensus data are chargeable and the data for the athis are free.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>