Chart description: The graph shows the number of cases doubling every 3 month period.

Chart data: Year Number of cumulative cases Jan 19, 2020 5 Jan 20, 2020 5 Jan 21, 2020 5 Jan 22, 2020 5 Jan 23, 2020 6 Jan 24, 2020 6 Jan 25, 2020 9 Jan 26, 2020 9 Jan 27, 2020 9 Jan 28, 2020 9 Jan 29, 2020 10 Jan 30, 2020 11 Jan 31, 2020 12 Feb 01, 2020 12 Feb 02, 2020 15 Feb 03, 2020 15 Feb 04, 2020 15 Feb 05, 2020 16 Feb 06, 2020 16 Feb 07, 2020 16 Feb 08, 2020 16 Feb 09, 2020 16 Feb 10, 2020 17 Feb 11, 2020 17 Feb 12, 2020 19 Feb 13, 2020 19 Feb 14, 2020 19 Feb 15, 2020 19 Feb 16, 2020 19 Feb 17, 2020 19 Feb 18, 2020 19 Feb 19, 2020 19 Feb 20, 2020 38 Feb 21, 2020 39 Feb 22, 2020 39 Feb 23, 2020 57 Feb 24, 2020 57 Feb 25, 2020 63 Feb 26, 2020 63 Feb 27, 2020 66 Feb 28, 2020 66 Feb 29, 2020 66 Mar 01, 2020 68 Mar 02, 2020 112 Mar 03, 2020 133 Mar 04, 2020 133 Mar 05, 2020 217 Mar 06, 2020 217 Mar 07, 2020 217 Mar 08, 2020 476 Mar 09, 2020 700 Mar 10, 2020 700 Mar 11, 2020 991 Mar 12, 2020 1268 Mar 13, 2020 1682 Mar 14, 2020 1718 Mar 15, 2020 1718 Mar 16, 2020 3540 Mar 17, 2020 7091 Mar 18, 2020 10442 Mar 19, 2020 15219 Mar 20, 2020 15219 Mar 21, 2020 15219 Mar 22, 2020 31573 Mar 23, 2020 51914 Mar 24, 2020 51914 Mar 25, 2020 68334 Mar 26, 2020 68334 Mar 27, 2020 85228 Mar 28, 2020 103321 Mar 29, 2020 122653 Mar 30, 2020 140640 Mar 31, 2020 163199 Apr 01, 2020 187302 Apr 02, 2020 213600 Apr 03, 2020 241703 Apr 04, 2020 273808 Apr 05, 2020 307318 Apr 06, 2020 333811 Apr 07, 2020 363321 Apr 08, 2020 395030 Apr 09, 2020 425889 Apr 10, 2020 461275 Apr 11, 2020 492881 Apr 12, 2020 524514 Apr 13, 2020 553822 Apr 14, 2020 578268 Apr 15, 2020 604070 Apr 16, 2020 632781 Apr 17, 2020 665330 Apr 18, 2020 695353 Apr 19, 2020 723605 Apr 20, 2020 751273 Apr 21, 2020 776907 Apr 22, 2020 800926 Apr 23, 2020 830053 Apr 24, 2020 860772 Apr 25, 2020 899281 Apr 26, 2020 931698 Apr 27, 2020 960916 Apr 28, 2020 983457 Apr 29, 2020 1003974 Apr 30, 2020 1035353 May 01, 2020 1067127 May 02, 2020 1093880 May 03, 2020 1125719 May 04, 2020 1154985 May 05, 2020 1171185 May 06, 2020 1193452 May 07, 2020 1215571 May 08, 2020 1245775 May 09, 2020 1271645 May 10, 2020 1298287 May 11, 2020 1322054 May 12, 2020 1340098 May 13, 2020 1361522 May 14, 2020 1382362 May 15, 2020 1409452 May 16, 2020 1432265 May 17, 2020 1464232 May 18, 2020 1477459 May 19, 2020 1501876 May 20, 2020 1525186 May 21, 2020 1547973 May 22, 2020 1568448 May 23, 2020 1592599 May 24, 2020 1618757 May 25, 2020 1634010 May 26, 2020 1658896 May 27, 2020 1675258 May 28, 2020 1694864 May 29, 2020 1716078 May 30, 2020 1734040 May 31, 2020 1757522 Jun 01, 2020 1783638 Jun 02, 2020 1798330 Jun 03, 2020 1823220 Jun 04, 2020 1837803 Jun 05, 2020 1857872 Jun 06, 2020 1886794 Jun 07, 2020 1915712 Jun 08, 2020 1933560 Jun 09, 2020 1951096 Jun 10, 2020 1968331 Jun 11, 2020 1988646 Jun 12, 2020 2010391 Jun 13, 2020 2032524 Jun 14, 2020 2057838 Jun 15, 2020 2079592 Jun 16, 2020 2098106 Jun 17, 2020 2126027 Jun 18, 2020 2149166 Jun 19, 2020 2172212 Jun 20, 2020 2208829 Jun 21, 2020 2241178 Jun 22, 2020 2268753 Jun 23, 2020 2295272 Jun 24, 2020 2329463 Jun 25, 2020 2367064 Jun 26, 2020 2407590 Jun 27, 2020 2452048 Jun 28, 2020 2496628 Jun 29, 2020 2537636 Jun 30, 2020 2573393 Jul 01, 2020 2616949 Jul 02, 2020 2671220 Jul 03, 2020 2724433 Jul 04, 2020 2776366 Jul 05, 2020 2833552 Jul 06, 2020 2877238 Jul 07, 2020 2923432 Jul 08, 2020 2973695 Jul 09, 2020 3038325 Jul 10, 2020 3097300 Jul 11, 2020 3163581 Jul 12, 2020 3225950 Jul 13, 2020 3286063 Jul 14, 2020 3344783 Jul 15, 2020 3405494 Jul 16, 2020 3472659 Jul 17, 2020 3544143 Jul 18, 2020 3618497 Jul 19, 2020 3685460 Jul 20, 2020 3748248 Jul 21, 2020 3805524 Jul 22, 2020 3868453 Jul 23, 2020 3938094 Jul 24, 2020 4009808 Jul 25, 2020 4084043 Jul 26, 2020 4148011 Jul 27, 2020 4209509 Jul 28, 2020 4263531 Jul 29, 2020 4323160 Jul 30, 2020 4388566 Jul 31, 2020 4456389 Aug 01, 2020 4523888 Aug 02, 2020 4582276 Aug 03, 2020 4629459 Aug 04, 2020 4678610 Aug 05, 2020 4728239 Aug 06, 2020 4781612 Aug 07, 2020 4836930 Aug 08, 2020 4897958 Aug 09, 2020 4951851 Aug 10, 2020 4999815 Aug 11, 2020 5039709 Aug 12, 2020 5094500 Aug 13, 2020 5150407 Aug 14, 2020 5203206 Aug 15, 2020 5258565 Aug 16, 2020 5312940 Aug 17, 2020 5354013 Aug 18, 2020 5393138 Aug 19, 2020 5431046 Aug 20, 2020 5477305 Aug 21, 2020 5521257 Aug 22, 2020 5567217 Aug 23, 2020 5612163 Aug 24, 2020 5649928 Aug 25, 2020 5682811 Aug 26, 2020 5719841 Aug 27, 2020 5765325 Aug 28, 2020 5811519 Aug 29, 2020 5855521 Aug 30, 2020 5899504 Aug 31, 2020 5936572 Sep 01, 2020 5968380 Sep 02, 2020 6011042 Sep 03, 2020 6050444 Sep 04, 2020 6095007 Sep 05, 2020 6144138 Sep 06, 2020 6189488 Sep 07, 2020 6222974 Sep 08, 2020 6248989 Sep 09, 2020 6272193 Sep 10, 2020 6304181 Sep 11, 2020 6341309 Sep 12, 2020 6386832 Sep 13, 2020 6426958 Sep 14, 2020 6462135 Sep 15, 2020 6496246 Sep 16, 2020 6530324 Sep 17, 2020 6571119 Sep 18, 2020 6613737 Sep 19, 2020 6662003 Sep 20, 2020 6703698 Sep 21, 2020 6740464 Sep 22, 2020 6779609 Sep 23, 2020 6828785 Sep 24, 2020 6868828 Sep 25, 2020 6910082 Sep 26, 2020 6960152 Sep 27, 2020 7009110 Sep 28, 2020 7044327 Sep 29, 2020 7077015 Sep 30, 2020 7115491 Oct 01, 2020 7160476 Oct 02, 2020 7206769 Oct 03, 2020 7256234 Oct 04, 2020 7305270 Oct 05, 2020 7341406 Oct 06, 2020 7380326 Oct 07, 2020 7419230 Oct 08, 2020 7471688 Oct 09, 2020 7525920 Oct 10, 2020 7583748 Oct 11, 2020 7636803 Oct 12, 2020 7682128 Oct 13, 2020 7728436 Oct 14, 2020 7774745 Oct 15, 2020 7833851 Oct 16, 2020 7896895 Oct 17, 2020 7966729 Oct 18, 2020 8019237 Oct 19, 2020 8065615 Oct 20, 2020 8124633 Oct 21, 2020 8184788 Oct 22, 2020 8248149 Oct 23, 2020 8320491 Oct 24, 2020 8403121 Oct 25, 2020 8485747 Oct 26, 2020 8548111 Oct 27, 2020 8611256 Oct 28, 2020 8683298 Oct 29, 2020 8763682 Oct 30, 2020 8852730 Oct 31, 2020 8952086 Nov 01, 2020 9032465 Nov 02, 2020 9108353 Nov 03, 2020 9193765 Nov 04, 2020 9281928 Nov 05, 2020 9387978 Nov 06, 2020 9504758 Nov 07, 2020 9636579 Nov 08, 2020 9763730 Nov 09, 2020 9868389 Nov 10, 2020 9990620 Nov 11, 2020 10124555 Nov 12, 2020 10266631 Nov 13, 2020 10460365 Nov 14, 2020 10641431 Nov 15, 2020 10796432 Nov 16, 2020 10933918 Nov 17, 2020 11085184 Nov 18, 2020 11249228 Nov 19, 2020 11413788 Nov 20, 2020 11597979 Nov 21, 2020 11789012 Nov 22, 2020 11972556 Nov 23, 2020 12119654 Nov 24, 2020 12276834 Nov 25, 2020 12441925 Nov 26, 2020 12622775 Nov 27, 2020 12763997 Nov 28, 2020 12939666 Nov 29, 2020 13082877 Nov 30, 2020 13234551 Dec 01, 2020 13385755 Dec 02, 2020 13563731 Dec 03, 2020 13759500 Dec 04, 2020 13978171 Dec 05, 2020 14191298 Dec 06, 2020 14397135 Dec 07, 2020 14570523 Dec 08, 2020 14755996 Dec 09, 2020 14972356 Dec 10, 2020 15203208 Dec 11, 2020 15404889 Dec 12, 2020 15648098 Dec 13, 2020 15860675 Dec 14, 2020 16041095 Dec 15, 2020 16245376 Dec 16, 2020 16446844 Dec 17, 2020 16682649 Dec 18, 2020 16912564 Dec 19, 2020 17314834 Dec 20, 2020 17515091 Dec 21, 2020 17712290 Dec 22, 2020 17895109 Dec 23, 2020 18090260 Dec 24, 2020 18311405 Dec 25, 2020 18503500 Dec 26, 2020 18648989 Dec 27, 2020 18827300 Dec 28, 2020 18972813 Dec 29, 2020 19147627 Dec 30, 2020 19346790 Dec 31, 2020 19346790 Jan 01, 2021 19578217 Jan 02, 2021 19974413 Jan 03, 2021 20258725 Jan 04, 2021 20470169

Vega-Lite specification:
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