In the Cardiovascular Disease Study, which initially enrolled two thousand 40-45 year old men, 120 already had cardiovascular disease. The remaining 1,880 were followed for another 5 years, during that time 150 more men developed cardiovascular disease. Calculate the prevalence of cardiovascular disease at the start of the study.

Express the result as a percentage with two numbers after the point without the % symbol, eg 0.025, enter 2.50. Do not write any text.