Regional Agglomeration Characteristics and Spatiotemporal Evolution of Snow and Ice Sports Industry in Heilongjiang Province from the Perspective of Time and Space

Table 2

Calculation of geographical concentration of the ice and snow sports industry in Heilongjiang Province from 2005 to 2019.

/	2005	2010	2015	2016	2017	2018	2019
IGC1	22.45	25.22	23.46	25.98	26.12	26.23	26.57
IGC2	68.85	69.76	70.45	72.11	73.18	73.27	74.02
IGC4	95.58	94.58	95.09	95.62	95.11	94.89	93.45
Top four cities	Qiqihar, Harbin, Yichun, and Suihua	Qiqihar, Harbin, Yichun, and Suihua	Qiqihar, Harbin, Yichun, and Suihua	Harbin, Qiqihar, Yichun, and Suihua	Harbin, Qiqihar, Suihua, and Yichun	Harbin, Qiqihar, Suihua, and Yichun	Harbin, Qiqihar, Yichun, and Suihua