(1) As of Q2 2013 the order of answer options is changed implying a drop in responses on "no limitations" and increase in other response options, especially "insufficient demand". (2) Please note, that the time reference refers to the time when data was collected. Therefore, Q1 corresponds to January, Q2 to April, Q3 to July and finally Q4 to October. (3) "B Mining and quarrying" is exclusive of Extraction of oil and gas industries.