Interesting chart from OECD Observer on retirement contributions by employers  Vs. employees in select OECD countries. Unfortunately USA was excluded in this chart.

Source: OECD Observer

Excerpts from the report:

“If you are a Polish worker, then you are probably paying 99% of total contributions, which is the highest in the OECD area. Turkey’s workers contribute a little less, with 97% of the total. In Portugal, on the other hand, employee contributions account for 14% of the total, while workers in Norway pay in just 4% to personal pension plans. In recent years, employers’ contributions to defined benefit plans-those pension plans that are linked to salaries-have grown, largely in an effort to reduce gaps in funding to cover growing benefit payments in light of population ageing.

Pension fund contributions by employees and employers combined grew substantially in 2007 in those countries with large defined benefit systems, such as Canada, the Netherlands, Switzerland and the UK. Australia, Iceland and Finland recorded the highest ratios of pension fund contributions-to-GDP. All three countries had ratios over 10%. “