World Values Survey

According to the World Values Survey, 70% of values correlate with just the two dimensions shown in this chart, Traditional/Secular and Survival/Self Expression. (You can read the details here.)
The WVS may provide some insight into the cultural differences between nations with differing democratic or political systems. In particular, Switzerland, with its direct democracy, is shown to be more secular and more self expressive than Britain, but not massively so.
(According to Lars Tragardh, writing in The Guardian, Cameron has an interest in Sweden, which appears at the top right of this graph, high on self expression and secularism.)