It was similar for us in Germany. The government started issuing (partial) lockdown policies in the second half of March, but a later analysis of mobility data

It was similar for us in Germany. The government started issuing (partial) lockdown policies in the second half of March, but a later analysis of mobility data (e.g. statistics from mobile phone network operators) showed that people had already reduced their mobility voluntarily in the first half of March, which helped make the first wave much smaller than most feared.