Russia’s gambling tax haul climbed for the fifth straight year in 2015 but is still only a sliver of the total collected before casinos were restricted to designated gaming zones.

According to stats compiled by Betting Business Russia, the state’s total tax raised from gambling sources came to RUB 623m (US $9.7m) last year, 17.5% higher than the previous year and 35% higher than the state earned in 2013.

However, while the numbers have nearly doubled since 2010, they pale in comparison to the RUB 33.4b (US $519m) the state earned in 2008, the year before Russia banned all casino activity to four remote and inhospitable regions of the country.

Nearly half (49%) of last year’s tax gains came via licensed bookmakers. There were 4,664 licensed betting offices in action last year, more than one-third of which were located in the Central Federal District that includes Russia’s capital Moscow.