1971: 6.548.316 (87,4%)/ 447.070 (6%)/ 22.267 (0,3%)
1981: 6.372.645 (84,3%)/ 423.162 (5,6%)/ 76.939 (1%)
1991: 6.081.454 (78%)/ 388.709 (5%)/ 158.776 (2%)
2001: 5.915.421 (73,6%)/ 376.150 (4,7%)/ 338.988 (4,2%)
2009: ..................……….../……....................../ 515.914 (6,2%)
2011: 5.403.722 (64,3%)/ 319.752 (3,8%)/
2016: 5.162.622 (58,8%)/ 301.729 (3,4%)/ 686.599 (7,9%)
2017: 5.112.330 (57,9 %)/ 296.338 (3,3%)/
2018: 5.053.074 (57%)/ 292.597/
2019: 4.984.633 (56%)/ 283.628 (3,2%)
2021: 4.828.066 (53,8%)/ 270.585 (3%)/ 745.600 (8,3%)

2009.09.04
The number of newborns with Muslim mothers (in all of Austria) accounted for 10,883, or 14%. In Vienna, the numbers are even more profound, in line with the preceding years: 36.7% were born as Roman Catholics (6,374), but already 24.1% were born Muslim (4,194). This trend is similar to Vorarlberg [the westernmost state in Austria], where 21% of all newborns were Muslim. In contrast, Burgenland [the easternmost state] shows only 5.2% Muslims.
http://gatesofvienna.blogspot.se/2009/0 ... ienna.html



