population on 1st January | | 825 826 | 826 176 | 830 936 | 841 789 | 849 774 | 855 555 | 858 807 | 870 298 | 879 640 | 884 937 | 889 450 | 890 407 | 892 742 | 892 099 | 888 288 | 884 092 | 880 992 | 876 477 | 873 744 |
live births | | 1 247 | 7 099 | 7 115 | 7 617 | 7 732 | 7 822 | 8 028 | 8 271 | 7 879 | 7 933 | 7 740 | 7 596 | 7 375 | 7 015 | 6 542 | 6 353 | 6 116 | 5 792 | .. |
deaths | | 1 821 | 9 229 | 9 515 | 9 092 | 9 952 | 9 518 | 9 699 | 10 202 | 9 849 | 9 949 | 9 937 | 10 418 | 10 124 | 9 907 | 10 811 | 10 252 | 10 789 | 10 078 | .. |
registrations from other municipalities | | 2 351 | 17 046 | 17 712 | 18 810 | 20 141 | 19 192 | 20 247 | 20 450 | 20 164 | 20 083 | 18 411 | 21 967 | 19 555 | 17 503 | 18 524 | 18 365 | 18 128 | 18 427 | .. |
deregistrations to other municipalities | | 1 735 | 14 664 | 15 724 | 17 487 | 17 935 | 18 047 | 18 722 | 19 037 | 19 036 | 18 985 | 18 204 | 20 967 | 19 724 | 18 432 | 18 258 | 18 218 | 18 083 | 18 211 | .. |
immigrated from other countries | | 731 | 6 398 | 12 752 | 9 982 | 8 129 | 6 086 | 13 704 | 12 731 | 9 776 | 9 458 | 7 344 | 6 548 | 5 437 | 4 264 | 4 189 | 4 628 | 5 383 | 5 647 | .. |
emigrated to other countries | | 423 | 1 890 | 1 487 | 1 845 | 2 334 | 2 283 | 2 067 | 2 871 | 3 637 | 4 027 | 4 397 | 2 391 | 3 162 | 4 254 | 4 382 | 3 976 | 5 270 | 4 310 | .. |
population on 31st December | | 826 176 | 830 936 | 841 789 | 849 774 | 855 555 | 858 807 | 870 298 | 879 640 | 884 937 | 889 450 | 890 407 | 892 742 | 892 099 | 888 288 | 884 092 | 880 992 | 876 477 | 873 744 | .. |
foreigners who acquired Italian citizenship | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .. |