A new survey of fresco makers in Italy has found that the most popular type of frescos, the decorative fresco, is the most expensive, at £17.25 ($27.65) per square metre.
The survey by the Italian journal Piazza L’Orme, published on Thursday, also found that there were fewer decorative frescos in the country than in 2015.
The majority of Italian frescos were designed by architects or artisans, with the most common being the floral design.
However, the survey also found the number of decorative fresca rose sharply in the first half of this year, to almost 1.5 million, from more than 600,000 the previous year.
It is a trend that has taken off in Italy after years of underfunding of the arts, with a series of expensive works of art from Leonardo da Vinci, Leonardo da Medici and Michelangelo, which have all been sold off for charity.