In several European countries, childcare costs place a heavy burden on working parents. A recent UK report has emphasized that the average annual costs of childcare have seen sharp rises in the past years and have grown beyond the average yearly mortgage payments. According to the OECD, the average cost for childcare for all OECD countries is 11.8% of parental net income (calculated on a family where two parents earn average wage). In Europe, this figure ranges from 26.6% for the UK to 4.9% for Greece. In addition to the limited affordability, a European review on childcare services found that the availability of childcare is also limited both in terms of care facilities on offer and the opening hours of structures.