Growth in affiliation with other religions, 1996 to 2021 Islam: 1996 - 200,900; 2001 - 281,600; 2006 - 340,400; 2011 - 476,300; 2016 - 604,200; 2021 - 813,400; Hinduism: 1996 - 67,300; 2001 - 95,500; 2006 - 148,100; 2011 - 275,500; 2016 - 440,300; 2021 - 684,000; Buddhism: 1996 - 199,800; 2001 - 357,800; 2006 - 418,800; 2011 - 529,00; 2016 - 563,700; 2021 - 615,800; Sikhism: 1996 - 12,000; 2001 - 17,400; 2006 - 26,400; 2011 - 72,300; 2016 - 125,900; 2021 - 210,400.