adopted a constitution in 1949 which protected freedom of religion and adopted the regulations of the Weimar Constitution; consequently, secularisation in West Germany proceeded slowly. East Germany, officially known as the German Democratic Republic, had a communist system which actively tried to reduce the influence of religion in society; the government restricted Christian churches and discriminated against Christians. In the 21st century, eastern German states, including the area of the former eastern capital, East Berlin, are less religious than western German states. Religious communities which are of sufficient size and stability and which are loyal to the constitution can be recognised as Körperschaften öffentlichen Rechtes (statutory corporations). This gives them certain privileges – for example, being able to give religious instruction in state schools (as enshrined in the German constitution, though some states are exempt from this) and having membership fees collected (for a fee) by the German revenue department as "church tax" (Kirchensteuer): a surcharge of between 8 and 9% of the income tax. The status mainly applies to the Catholic Church, the mainline Evangelical Church in Germany, a number of free churches, and Jewish communities. There has been much discussion about allowing other religious groups (such as Muslims) into this system as well. In the 21st century, eastern German states, including the area of the former eastern capital, East Berlin, are less religious than western German states. In 2018 the states of Lower Saxony, Schleswig-Holstein, Hamburg and Bremen made Reformation Day (31 October) a permanent official holiday. This initiative began after the day had been held as a nationwide holiday in 2017, due to the 500th Reformation anniversary of the Reformation, and also due to the fact that the northern German states have significantly fewer holidays than the southern ones. In 2019 the Catholic News Agency reported that the Catholic church in Germany had a net loss of 216,078 members the previous year. The Protestant churches in Germany had a similar net loss of membership of about 220,000 members. While the total of Catholic and Protestant church membership stands at 45 million or 53%, demographers predict that based on current trends it will fall to 23 million by 2060. In 2020 it was reported that the Catholic church in Germany had a 402,000 loss in membership, the largest ever single year decrease up to that point. The Protestant churches in Germany also had a large drop in membership