The Australian retirement saving system is ranked third worldwide in the 2015 Melbourne Mercer Global Pension Index (MMGPI). In the overall ranking, which includes measures of adequacy, sustainability and integrity, the Australian retirement saving system was awarded a score of 79.6 behind Denmark (81.7) and Netherlands (80.5). The Australian score results in a B+ categorisation, slightly outside the A grade rating associated with a score of 80 or more – only the Danish and Dutch systems have been rated A grade in the seven year history of the index.